77490339 has 8 divisors (see below), whose sum is σ = 103362240. Its totient is φ = 51639336.

The previous prime is 77490319. The next prime is 77490461. The reversal of 77490339 is 93309477.

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

It is not a de Polignac number, because 77490339 - 2⁵ = 77490307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77490339.

It is not an unprimeable number, because it can be changed into a prime (77490319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8844 + ... + 15270.

It is an arithmetic number, because the mean of its divisors is an integer number (12920280).

Almost surely, 2^77490339 is an apocalyptic number.

77490339 is a deficient number, since it is larger than the sum of its proper divisors (25871901).

77490339 is a wasteful number, since it uses less digits than its factorization.

77490339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 77490339 is about 8802.8597058002. The cubic root of 77490339 is about 426.3332323998. Note that the first 3 decimals are identical.

The spelling of 77490339 in words is "seventy-seven million, four hundred ninety thousand, three hundred thirty-nine".