15672081 has 16 divisors (see below), whose sum is σ = 22077440. Its totient is φ = 9873360.

The previous prime is 15672077. The next prime is 15672089. The reversal of 15672081 is 18027651.

15672081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15672081 - 2² = 15672077 is a prime.

It is a super-2 number, since 2×15672081² = 491228245741122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15672089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2040 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (1379840).

Almost surely, 2^15672081 is an apocalyptic number.

It is an amenable number.

15672081 is a deficient number, since it is larger than the sum of its proper divisors (6405359).

15672081 is a wasteful number, since it uses less digits than its factorization.

15672081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 15672081 is about 3958.7979236127. The cubic root of 15672081 is about 250.2508468858.

The spelling of 15672081 in words is "fifteen million, six hundred seventy-two thousand, eighty-one".