477860639 has 2 divisors, whose sum is σ = 477860640. Its totient is φ = 477860638.

The previous prime is 477860611. The next prime is 477860653. The reversal of 477860639 is 936068774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 477860639 - 2²⁴ = 461083423 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477865639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238930319 + 238930320.

It is an arithmetic number, because the mean of its divisors is an integer number (238930320).

Almost surely, 2^477860639 is an apocalyptic number.

477860639 is a deficient number, since it is larger than the sum of its proper divisors (1).

477860639 is an equidigital number, since it uses as much as digits as its factorization.

477860639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 477860639 is about 21860.0237648544. The cubic root of 477860639 is about 781.8085575413.

The spelling of 477860639 in words is "four hundred seventy-seven million, eight hundred sixty thousand, six hundred thirty-nine".