72977154 has 8 divisors (see below), whose sum is σ = 145954320. Its totient is φ = 24325716.

The previous prime is 72977153. The next prime is 72977173. The reversal of 72977154 is 45177927.

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

72977154 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (72977153) 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, 6081424 + ... + 6081435.

It is an arithmetic number, because the mean of its divisors is an integer number (18244290).

Almost surely, 2^72977154 is an apocalyptic number.

72977154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72977154 is a wasteful number, since it uses less digits than its factorization.

72977154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12162864.

The product of its digits is 123480, while the sum is 42.

The square root of 72977154 is about 8542.6666796733. Note that the first 4 decimals coincide. The cubic root of 72977154 is about 417.8903163753.

The spelling of 72977154 in words is "seventy-two million, nine hundred seventy-seven thousand, one hundred fifty-four".