72677842 has 8 divisors (see below), whose sum is σ = 111963276. Its totient is φ = 35356752.

The previous prime is 72677837. The next prime is 72677849. The reversal of 72677842 is 24877627.

It can be written as a sum of positive squares in 2 ways, for example, as 70879561 + 1798281 = 8419^2 + 1341^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72677849) 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, 490993 + ... + 491140.

Almost surely, 2^72677842 is an apocalyptic number.

72677842 is a deficient number, since it is larger than the sum of its proper divisors (39285434).

72677842 is a wasteful number, since it uses less digits than its factorization.

72677842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982172.

The product of its digits is 263424, while the sum is 43.

The square root of 72677842 is about 8525.1300283339. The cubic root of 72677842 is about 417.3182150500.

The spelling of 72677842 in words is "seventy-two million, six hundred seventy-seven thousand, eight hundred forty-two".