72747762 has 16 divisors (see below), whose sum is σ = 150189312. Its totient is φ = 23466960.

The previous prime is 72747761. The next prime is 72747797. The reversal of 72747762 is 26774727.

It is not an unprimeable number, because it can be changed into a prime (72747761) 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, 195373 + ... + 195744.

It is an arithmetic number, because the mean of its divisors is an integer number (9386832).

Almost surely, 2^72747762 is an apocalyptic number.

72747762 is an abundant number, since it is smaller than the sum of its proper divisors (77441550).

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

72747762 is a wasteful number, since it uses less digits than its factorization.

72747762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391153.

The product of its digits is 230496, while the sum is 42.

The square root of 72747762 is about 8529.2298597236. The cubic root of 72747762 is about 417.4519996927.

The spelling of 72747762 in words is "seventy-two million, seven hundred forty-seven thousand, seven hundred sixty-two".