72771374 has 8 divisors (see below), whose sum is σ = 117553800. Its totient is φ = 33586776.

The previous prime is 72771323. The next prime is 72771383. The reversal of 72771374 is 47317727.

It is a happy number.

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

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, 1399424 + ... + 1399475.

It is an arithmetic number, because the mean of its divisors is an integer number (14694225).

Almost surely, 2^72771374 is an apocalyptic number.

72771374 is a deficient number, since it is larger than the sum of its proper divisors (44782426).

72771374 is a wasteful number, since it uses less digits than its factorization.

72771374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798914.

The product of its digits is 57624, while the sum is 38.

The square root of 72771374 is about 8530.6139286689. The cubic root of 72771374 is about 417.4971594342.

The spelling of 72771374 in words is "seventy-two million, seven hundred seventy-one thousand, three hundred seventy-four".