72073670 has 8 divisors (see below), whose sum is σ = 129732624. Its totient is φ = 28829464.

The previous prime is 72073649. The next prime is 72073699. The reversal of 72073670 is 7637027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72073670² = 10389227814537800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3603674 + ... + 3603693.

It is an arithmetic number, because the mean of its divisors is an integer number (16216578).

Almost surely, 2^72073670 is an apocalyptic number.

72073670 is a deficient number, since it is larger than the sum of its proper divisors (57658954).

72073670 is a wasteful number, since it uses less digits than its factorization.

72073670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207374.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 72073670 is about 8489.6213107535. The cubic root of 72073670 is about 416.1586049254.

The spelling of 72073670 in words is "seventy-two million, seventy-three thousand, six hundred seventy".