478039357 has 2 divisors, whose sum is σ = 478039358. Its totient is φ = 478039356.

The previous prime is 478039327. The next prime is 478039399. The reversal of 478039357 is 753930874.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444619396 + 33419961 = 21086^2 + 5781^2 .

It is a cyclic number.

It is not a de Polignac number, because 478039357 - 2²⁷ = 343821629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478039327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239019678 + 239019679.

It is an arithmetic number, because the mean of its divisors is an integer number (239019679).

Almost surely, 2^478039357 is an apocalyptic number.

It is an amenable number.

478039357 is a deficient number, since it is larger than the sum of its proper divisors (1).

478039357 is an equidigital number, since it uses as much as digits as its factorization.

478039357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 478039357 is about 21864.1111641887. Note that the first 4 decimals coincide. The cubic root of 478039357 is about 781.9060098355.

The spelling of 478039357 in words is "four hundred seventy-eight million, thirty-nine thousand, three hundred fifty-seven".