70986930 has 32 divisors (see below), whose sum is σ = 194707584. Its totient is φ = 16225536.

The previous prime is 70986919. The next prime is 70986953. The reversal of 70986930 is 3968907.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 168807 + ... + 169226.

It is an arithmetic number, because the mean of its divisors is an integer number (6084612).

Almost surely, 2^70986930 is an apocalyptic number.

70986930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70986930 is an abundant number, since it is smaller than the sum of its proper divisors (123720654).

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

70986930 is a wasteful number, since it uses less digits than its factorization.

70986930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338050.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 70986930 is about 8425.3741756672. The cubic root of 70986930 is about 414.0563647032.

It can be divided in two parts, 7098 and 6930, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 70986930 in words is "seventy million, nine hundred eighty-six thousand, nine hundred thirty".