64036631 has 8 divisors (see below), whose sum is σ = 67546800. Its totient is φ = 60540480.

The previous prime is 64036627. The next prime is 64036649. The reversal of 64036631 is 13663046.

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

It is a cyclic number.

It is not a de Polignac number, because 64036631 - 2² = 64036627 is a prime.

It is a super-2 number, since 2×64036631² = 8201380219660322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64036594 and 64036603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64036691) 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, 6665 + ... + 13133.

It is an arithmetic number, because the mean of its divisors is an integer number (8443350).

Almost surely, 2^64036631 is an apocalyptic number.

64036631 is a deficient number, since it is larger than the sum of its proper divisors (3510169).

64036631 is a wasteful number, since it uses less digits than its factorization.

64036631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 64036631 is about 8002.2891099985. The cubic root of 64036631 is about 400.0763000282.

Adding to 64036631 its reverse (13663046), we get a palindrome (77699677).

The spelling of 64036631 in words is "sixty-four million, thirty-six thousand, six hundred thirty-one".