477220417 has 4 divisors (see below), whose sum is σ = 492614656. Its totient is φ = 461826180.

The previous prime is 477220411. The next prime is 477220423. The reversal of 477220417 is 714022774.

It is a happy number.

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.

It is an interprime number because it is at equal distance from previous prime (477220411) and next prime (477220423).

It is a cyclic number.

It is not a de Polignac number, because 477220417 - 2¹⁵ = 477187649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477220411) 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, 7697073 + ... + 7697134.

It is an arithmetic number, because the mean of its divisors is an integer number (123153664).

Almost surely, 2^477220417 is an apocalyptic number.

It is an amenable number.

477220417 is a deficient number, since it is larger than the sum of its proper divisors (15394239).

477220417 is a wasteful number, since it uses less digits than its factorization.

477220417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15394238.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 477220417 is about 21845.3751856085. The cubic root of 477220417 is about 781.4592543514.

The spelling of 477220417 in words is "four hundred seventy-seven million, two hundred twenty thousand, four hundred seventeen".