67872290 has 16 divisors (see below), whose sum is σ = 123544440. Its totient is φ = 26843520.

The previous prime is 67872283. The next prime is 67872293. The reversal of 67872290 is 9227876.

It can be written as a sum of positive squares in 4 ways, for example, as 44262409 + 23609881 = 6653^2 + 4859^2 .

It is not an unprimeable number, because it can be changed into a prime (67872293) 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, 37241 + ... + 39020.

Almost surely, 2^67872290 is an apocalyptic number.

67872290 is a deficient number, since it is larger than the sum of its proper divisors (55672150).

67872290 is a wasteful number, since it uses less digits than its factorization.

67872290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76357.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 67872290 is about 8238.4640558784. The cubic root of 67872290 is about 407.9098264451.

The spelling of 67872290 in words is "sixty-seven million, eight hundred seventy-two thousand, two hundred ninety".