461643477 has 8 divisors (see below), whose sum is σ = 630537600. Its totient is φ = 300255840.

The previous prime is 461643473. The next prime is 461643493. The reversal of 461643477 is 774346164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 461643477 - 2² = 461643473 is a prime.

It is a super-2 number, since 2×461643477² = 426229399713299058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461643473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876477 + ... + 1876722.

It is an arithmetic number, because the mean of its divisors is an integer number (78817200).

Almost surely, 2^461643477 is an apocalyptic number.

It is an amenable number.

461643477 is a deficient number, since it is larger than the sum of its proper divisors (168894123).

461643477 is a wasteful number, since it uses less digits than its factorization.

461643477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753243.

The product of its digits is 338688, while the sum is 42.

The square root of 461643477 is about 21485.8901840254. The cubic root of 461643477 is about 772.8624982541.

The spelling of 461643477 in words is "four hundred sixty-one million, six hundred forty-three thousand, four hundred seventy-seven".