72671562 has 12 divisors (see below), whose sum is σ = 157455090. Its totient is φ = 24223848.

The previous prime is 72671551. The next prime is 72671567. The reversal of 72671562 is 26517627.

72671562 is a `hidden beast` number, since 7 + 26 + 71 + 562 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71419401 + 1252161 = 8451^2 + 1119^2 .

It is not an unprimeable number, because it can be changed into a prime (72671567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2018637 + ... + 2018672.

Almost surely, 2^72671562 is an apocalyptic number.

72671562 is an abundant number, since it is smaller than the sum of its proper divisors (84783528).

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

72671562 is a wasteful number, since it uses less digits than its factorization.

72671562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037317 (or 4037314 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 72671562 is about 8524.7616975491. The cubic root of 72671562 is about 417.3061947248.

The spelling of 72671562 in words is "seventy-two million, six hundred seventy-one thousand, five hundred sixty-two".