478951901 has 2 divisors, whose sum is σ = 478951902. Its totient is φ = 478951900.

The previous prime is 478951877. The next prime is 478951903. The reversal of 478951901 is 109159874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410872900 + 68079001 = 20270^2 + 8251^2 .

It is a cyclic number.

It is not a de Polignac number, because 478951901 - 2¹⁴ = 478935517 is a prime.

Together with 478951903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478951903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239475950 + 239475951.

It is an arithmetic number, because the mean of its divisors is an integer number (239475951).

Almost surely, 2^478951901 is an apocalyptic number.

It is an amenable number.

478951901 is a deficient number, since it is larger than the sum of its proper divisors (1).

478951901 is an equidigital number, since it uses as much as digits as its factorization.

478951901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 478951901 is about 21884.9697509501. The cubic root of 478951901 is about 782.4032283775.

The spelling of 478951901 in words is "four hundred seventy-eight million, nine hundred fifty-one thousand, nine hundred one".