474884257 has 4 divisors (see below), whose sum is σ = 490203136. Its totient is φ = 459565380.

The previous prime is 474884237. The next prime is 474884269. The reversal of 474884257 is 752488474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752488474 = 2 ⋅376244237.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474884257 is a prime.

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 474884257.

It is not an unprimeable number, because it can be changed into a prime (474884237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7659393 + ... + 7659454.

It is an arithmetic number, because the mean of its divisors is an integer number (122550784).

Almost surely, 2^474884257 is an apocalyptic number.

It is an amenable number.

474884257 is a deficient number, since it is larger than the sum of its proper divisors (15318879).

474884257 is a wasteful number, since it uses less digits than its factorization.

474884257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15318878.

The product of its digits is 2007040, while the sum is 49.

The square root of 474884257 is about 21791.8392293996. The cubic root of 474884257 is about 780.1819962125.

The spelling of 474884257 in words is "four hundred seventy-four million, eight hundred eighty-four thousand, two hundred fifty-seven".