64748031 has 8 divisors (see below), whose sum is σ = 86652720. Its totient is φ = 43004352.

The previous prime is 64748027. The next prime is 64748041. The reversal of 64748031 is 13084746.

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

It is not a de Polignac number, because 64748031 - 2² = 64748027 is a prime.

It is a super-2 number, since 2×64748031² = 8384615036753922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64747983 and 64748001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64748041) 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, 39310 + ... + 40923.

It is an arithmetic number, because the mean of its divisors is an integer number (10831590).

Almost surely, 2^64748031 is an apocalyptic number.

64748031 is a deficient number, since it is larger than the sum of its proper divisors (21904689).

64748031 is a wasteful number, since it uses less digits than its factorization.

64748031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80505.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64748031 is about 8046.6161210785. The cubic root of 64748031 is about 401.5523655262.

The spelling of 64748031 in words is "sixty-four million, seven hundred forty-eight thousand, thirty-one".