70123472 has 20 divisors (see below), whose sum is σ = 136152000. Its totient is φ = 34987488.

The previous prime is 70123439. The next prime is 70123499. The reversal of 70123472 is 27432107.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593 + ... + 12375.

It is an arithmetic number, because the mean of its divisors is an integer number (6807600).

Almost surely, 2^70123472 is an apocalyptic number.

It is an amenable number.

70123472 is a deficient number, since it is larger than the sum of its proper divisors (66028528).

70123472 is a wasteful number, since it uses less digits than its factorization.

70123472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290 (or 9284 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 70123472 is about 8373.9758776820. The cubic root of 70123472 is about 412.3707035233.

Adding to 70123472 its reverse (27432107), we get a palindrome (97555579).

The spelling of 70123472 in words is "seventy million, one hundred twenty-three thousand, four hundred seventy-two".