72673670 has 16 divisors (see below), whose sum is σ = 137697840. Its totient is φ = 27539424.

The previous prime is 72673649. The next prime is 72673687. The reversal of 72673670 is 7637627.

It is a super-2 number, since 2×72673670² = 10562924622537800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191057 + ... + 191436.

It is an arithmetic number, because the mean of its divisors is an integer number (8606115).

Almost surely, 2^72673670 is an apocalyptic number.

72673670 is a deficient number, since it is larger than the sum of its proper divisors (65024170).

72673670 is a wasteful number, since it uses less digits than its factorization.

72673670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382519.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 72673670 is about 8524.8853364723. The cubic root of 72673670 is about 417.3102296501.

The spelling of 72673670 in words is "seventy-two million, six hundred seventy-three thousand, six hundred seventy".