92720028 has 12 divisors (see below), whose sum is σ = 216346760. Its totient is φ = 30906672.

The previous prime is 92720021. The next prime is 92720029. The reversal of 92720028 is 82002729.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 92719977 and 92720004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92720021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3863323 + ... + 3863346.

Almost surely, 2^92720028 is an apocalyptic number.

It is an amenable number.

92720028 is an abundant number, since it is smaller than the sum of its proper divisors (123626732).

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

92720028 is a wasteful number, since it uses less digits than its factorization.

92720028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726676 (or 7726674 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 92720028 is about 9629.1239476912. The cubic root of 92720028 is about 452.6103887046.

The spelling of 92720028 in words is "ninety-two million, seven hundred twenty thousand, twenty-eight".