147697830 has 192 divisors, whose sum is σ = 480130560. Its totient is φ = 31912704.

The previous prime is 147697813. The next prime is 147697831. The reversal of 147697830 is 38796741.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147697831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 322962 + ... + 323418.

It is an arithmetic number, because the mean of its divisors is an integer number (2500680).

Almost surely, 2^147697830 is an apocalyptic number.

147697830 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 147697830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240065280).

147697830 is an abundant number, since it is smaller than the sum of its proper divisors (332432730).

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

147697830 is a wasteful number, since it uses less digits than its factorization.

147697830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 147697830 is about 12153.0996046276. The cubic root of 147697830 is about 528.5970132317.

The spelling of 147697830 in words is "one hundred forty-seven million, six hundred ninety-seven thousand, eight hundred thirty".