72054997 has 8 divisors (see below), whose sum is σ = 82441152. Its totient is φ = 61692000.

The previous prime is 72054991. The next prime is 72055001. The reversal of 72054997 is 79945027.

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

It is a cyclic number.

It is not a de Polignac number, because 72054997 - 2¹⁵ = 72022229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72054991) 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, 1497 + ... + 12097.

It is an arithmetic number, because the mean of its divisors is an integer number (10305144).

Almost surely, 2^72054997 is an apocalyptic number.

It is an amenable number.

72054997 is a deficient number, since it is larger than the sum of its proper divisors (10386155).

72054997 is a wasteful number, since it uses less digits than its factorization.

72054997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 72054997 is about 8488.5214849230. The cubic root of 72054997 is about 416.1226620685.

The spelling of 72054997 in words is "seventy-two million, fifty-four thousand, nine hundred ninety-seven".