72107694 has 12 divisors (see below), whose sum is σ = 156233376. Its totient is φ = 24035892.

The previous prime is 72107687. The next prime is 72107699. The reversal of 72107694 is 49670127.

It is a happy number.

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 (72107699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2002974 + ... + 2003009.

It is an arithmetic number, because the mean of its divisors is an integer number (13019448).

Almost surely, 2^72107694 is an apocalyptic number.

72107694 is an abundant number, since it is smaller than the sum of its proper divisors (84125682).

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

72107694 is a wasteful number, since it uses less digits than its factorization.

72107694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005991 (or 4005988 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 72107694 is about 8491.6249328382. The cubic root of 72107694 is about 416.2240803058.

The spelling of 72107694 in words is "seventy-two million, one hundred seven thousand, six hundred ninety-four".