72684954 has 12 divisors (see below), whose sum is σ = 157484106. Its totient is φ = 24228312.

The previous prime is 72684947. The next prime is 72684961. The reversal of 72684954 is 45948627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72684947) and next prime (72684961).

It can be written as a sum of positive squares in only one way, i.e., 71825625 + 859329 = 8475^2 + 927^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2019009 + ... + 2019044.

Almost surely, 2^72684954 is an apocalyptic number.

72684954 is an abundant number, since it is smaller than the sum of its proper divisors (84799152).

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

72684954 is a wasteful number, since it uses less digits than its factorization.

72684954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038061 (or 4038058 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 72684954 is about 8525.5471378675. The cubic root of 72684954 is about 417.3318270408.

The spelling of 72684954 in words is "seventy-two million, six hundred eighty-four thousand, nine hundred fifty-four".