474821431 has 4 divisors (see below), whose sum is σ = 542653072. Its totient is φ = 406989792.

The previous prime is 474821411. The next prime is 474821447. The reversal of 474821431 is 134128474.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134128474 = 2 ⋅67064237.

It is a cyclic number.

It is not a de Polignac number, because 474821431 - 2⁹ = 474820919 is a prime.

It is a super-2 number, since 2×474821431² = 450910782673775522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474821411) 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, 33915810 + ... + 33915823.

It is an arithmetic number, because the mean of its divisors is an integer number (135663268).

Almost surely, 2^474821431 is an apocalyptic number.

474821431 is a deficient number, since it is larger than the sum of its proper divisors (67831641).

474821431 is an equidigital number, since it uses as much as digits as its factorization.

474821431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67831640.

The product of its digits is 21504, while the sum is 34.

The square root of 474821431 is about 21790.3976787942. The cubic root of 474821431 is about 780.1475893192.

The spelling of 474821431 in words is "four hundred seventy-four million, eight hundred twenty-one thousand, four hundred thirty-one".