72891676 has 72 divisors (see below), whose sum is σ = 158611824. Its totient is φ = 28892160.

The previous prime is 72891673. The next prime is 72891691. The reversal of 72891676 is 67619827.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72891673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206316 + ... + 206668.

It is an arithmetic number, because the mean of its divisors is an integer number (2202942).

Almost surely, 2^72891676 is an apocalyptic number.

72891676 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72891676 is an abundant number, since it is smaller than the sum of its proper divisors (85720148).

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

72891676 is a wasteful number, since it uses less digits than its factorization.

72891676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 398 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 72891676 is about 8537.6622092936. The cubic root of 72891676 is about 417.7270945905.

The spelling of 72891676 in words is "seventy-two million, eight hundred ninety-one thousand, six hundred seventy-six".