70690252 has 12 divisors (see below), whose sum is σ = 123963336. Its totient is φ = 35272160.

The previous prime is 70690229. The next prime is 70690259. The reversal of 70690252 is 25209607.

It is a super-2 number, since 2×70690252² = 9994223455647008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70690259) 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 3 ways as a sum of consecutive naturals, for example, 16033 + ... + 19960.

It is an arithmetic number, because the mean of its divisors is an integer number (10330278).

Almost surely, 2^70690252 is an apocalyptic number.

It is an amenable number.

70690252 is a deficient number, since it is larger than the sum of its proper divisors (53273084).

70690252 is a wasteful number, since it uses less digits than its factorization.

70690252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36488 (or 36486 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 70690252 is about 8407.7495205316. The cubic root of 70690252 is about 413.4787328099.

Adding to 70690252 its reverse (25209607), we get a palindrome (95899859).

The spelling of 70690252 in words is "seventy million, six hundred ninety thousand, two hundred fifty-two".