147690 has 32 divisors (see below), whose sum is σ = 394560. Its totient is φ = 39312.

The previous prime is 147689. The next prime is 147703. The reversal of 147690 is 96741.

It is a super-2 number, since 2×147690² = 43624672200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4 + ... + 543.

It is an arithmetic number, because the mean of its divisors is an integer number (12330).

2¹⁴⁷⁶⁹⁰ is an apocalyptic number.

147690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 147690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197280).

147690 is an abundant number, since it is smaller than the sum of its proper divisors (246870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147690 is a wasteful number, since it uses less digits than its factorization.

147690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 147690 is about 384.3045667176. The cubic root of 147690 is about 52.8587672116.

The spelling of 147690 in words is "one hundred forty-seven thousand, six hundred ninety".