70107072 has 56 divisors (see below), whose sum is σ = 211994496. Its totient is φ = 20030208.

The previous prime is 70107067. The next prime is 70107073. The reversal of 70107072 is 27070107.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70107073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24738 + ... + 27425.

It is an arithmetic number, because the mean of its divisors is an integer number (3785616).

Almost surely, 2^70107072 is an apocalyptic number.

It is an amenable number.

70107072 is an abundant number, since it is smaller than the sum of its proper divisors (141887424).

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

70107072 is a wasteful number, since it uses less digits than its factorization.

70107072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52185 (or 52175 counting only the distinct ones).

The product of its (nonzero) digits is 686, while the sum is 24.

The square root of 70107072 is about 8372.9965962014. The cubic root of 70107072 is about 412.3385535330.

Adding to 70107072 its reverse (27070107), we get a palindrome (97177179).

The spelling of 70107072 in words is "seventy million, one hundred seven thousand, seventy-two".