72791061 has 8 divisors (see below), whose sum is σ = 110919744. Its totient is φ = 41594880.

The previous prime is 72791057. The next prime is 72791077. The reversal of 72791061 is 16019727.

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

It is not a de Polignac number, because 72791061 - 2² = 72791057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72691061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733100 + ... + 1733141.

It is an arithmetic number, because the mean of its divisors is an integer number (13864968).

Almost surely, 2^72791061 is an apocalyptic number.

It is an amenable number.

72791061 is a deficient number, since it is larger than the sum of its proper divisors (38128683).

72791061 is a wasteful number, since it uses less digits than its factorization.

72791061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466251.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 72791061 is about 8531.7677535198. The cubic root of 72791061 is about 417.5348048482.

The spelling of 72791061 in words is "seventy-two million, seven hundred ninety-one thousand, sixty-one".