478980739 has 4 divisors (see below), whose sum is σ = 479096856. Its totient is φ = 478864624.

The previous prime is 478980731. The next prime is 478980793. The reversal of 478980739 is 937089874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478980739 - 2³ = 478980731 is a prime.

It is a super-2 number, since 2×478980739² = 458845096665972242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478980739.

It is not an unprimeable number, because it can be changed into a prime (478980731) 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 3 ways as a sum of consecutive naturals, for example, 51634 + ... + 60199.

It is an arithmetic number, because the mean of its divisors is an integer number (119774214).

Almost surely, 2^478980739 is an apocalyptic number.

478980739 is a deficient number, since it is larger than the sum of its proper divisors (116117).

478980739 is a wasteful number, since it uses less digits than its factorization.

478980739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116116.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 478980739 is about 21885.6285950393. The cubic root of 478980739 is about 782.4189310618.

The spelling of 478980739 in words is "four hundred seventy-eight million, nine hundred eighty thousand, seven hundred thirty-nine".