72678006 has 16 divisors (see below), whose sum is σ = 161506800. Its totient is φ = 24225984.

The previous prime is 72677993. The next prime is 72678007. The reversal of 72678006 is 60087627.

It is a super-2 number, since 2×72678006² = 10564185112272072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72678007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672891 + ... + 672998.

It is an arithmetic number, because the mean of its divisors is an integer number (10094175).

Almost surely, 2^72678006 is an apocalyptic number.

72678006 is an abundant number, since it is smaller than the sum of its proper divisors (88828794).

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

72678006 is a wasteful number, since it uses less digits than its factorization.

72678006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345900 (or 1345894 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 72678006 is about 8525.1396469501. The cubic root of 72678006 is about 417.3185289473.

The spelling of 72678006 in words is "seventy-two million, six hundred seventy-eight thousand, six".