70497790 has 64 divisors (see below), whose sum is σ = 147744000. Its totient is φ = 23950080.

The previous prime is 70497787. The next prime is 70497799. The reversal of 70497790 is 9779407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70497799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185821 + ... + 186199.

It is an arithmetic number, because the mean of its divisors is an integer number (2308500).

Almost surely, 2^70497790 is an apocalyptic number.

70497790 is an abundant number, since it is smaller than the sum of its proper divisors (77246210).

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

70497790 is a wasteful number, since it uses less digits than its factorization.

70497790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 70497790 is about 8396.2962072571. The cubic root of 70497790 is about 413.1031446070.

The spelling of 70497790 in words is "seventy million, four hundred ninety-seven thousand, seven hundred ninety".