72693994 has 8 divisors (see below), whose sum is σ = 111576960. Its totient is φ = 35501676.

The previous prime is 72693991. The next prime is 72694009. The reversal of 72693994 is 49939627.

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

It is not an unprimeable number, because it can be changed into a prime (72693991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422554 + ... + 422725.

It is an arithmetic number, because the mean of its divisors is an integer number (13947120).

Almost surely, 2^72693994 is an apocalyptic number.

72693994 is a deficient number, since it is larger than the sum of its proper divisors (38882966).

72693994 is a wasteful number, since it uses less digits than its factorization.

72693994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845324.

The product of its digits is 734832, while the sum is 49.

The square root of 72693994 is about 8526.0772926358. The cubic root of 72693994 is about 417.3491278397.

The spelling of 72693994 in words is "seventy-two million, six hundred ninety-three thousand, nine hundred ninety-four".