64461831 has 8 divisors (see below), whose sum is σ = 98227584. Its totient is φ = 36835320.

The previous prime is 64461827. The next prime is 64461853. The reversal of 64461831 is 13816446.

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

It is not a de Polignac number, because 64461831 - 2² = 64461827 is a prime.

It is a super-2 number, since 2×64461831² = 8310655311745122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64461792 and 64461801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64461821) 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, 1534785 + ... + 1534826.

It is an arithmetic number, because the mean of its divisors is an integer number (12278448).

Almost surely, 2^64461831 is an apocalyptic number.

64461831 is a deficient number, since it is larger than the sum of its proper divisors (33765753).

64461831 is a wasteful number, since it uses less digits than its factorization.

64461831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069621.

The product of its digits is 13824, while the sum is 33.

The square root of 64461831 is about 8028.8125523019. The cubic root of 64461831 is about 400.9598428287.

The spelling of 64461831 in words is "sixty-four million, four hundred sixty-one thousand, eight hundred thirty-one".