72693371 has 4 divisors (see below), whose sum is σ = 72712632. Its totient is φ = 72674112.

The previous prime is 72693367. The next prime is 72693391. The reversal of 72693371 is 17339627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17339627 = 233 ⋅74419.

It is a cyclic number.

It is not a de Polignac number, because 72693371 - 2² = 72693367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72693301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901 + ... + 12206.

It is an arithmetic number, because the mean of its divisors is an integer number (18178158).

Almost surely, 2^72693371 is an apocalyptic number.

72693371 is a deficient number, since it is larger than the sum of its proper divisors (19261).

72693371 is a wasteful number, since it uses less digits than its factorization.

72693371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19260.

The product of its digits is 47628, while the sum is 38.

The square root of 72693371 is about 8526.0407575850. The cubic root of 72693371 is about 417.3479355851.

The spelling of 72693371 in words is "seventy-two million, six hundred ninety-three thousand, three hundred seventy-one".