70956690 has 64 divisors (see below), whose sum is σ = 197406720. Its totient is φ = 15986880.

The previous prime is 70956673. The next prime is 70956703. The reversal of 70956690 is 9665907.

It is a super-2 number, since 2×70956690² = 10069703711512200, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 12531 + ... + 17289.

It is an arithmetic number, because the mean of its divisors is an integer number (3084480).

Almost surely, 2^70956690 is an apocalyptic number.

70956690 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70956690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98703360).

70956690 is an abundant number, since it is smaller than the sum of its proper divisors (126450030).

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

70956690 is a wasteful number, since it uses less digits than its factorization.

70956690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 70956690 is about 8423.5794054547. The cubic root of 70956690 is about 413.9975611889.

The spelling of 70956690 in words is "seventy million, nine hundred fifty-six thousand, six hundred ninety".