64631414 has 4 divisors (see below), whose sum is σ = 96947124. Its totient is φ = 32315706.

The previous prime is 64631383. The next prime is 64631423. The reversal of 64631414 is 41413646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41413646 = 2 ⋅20706823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16157852 + ... + 16157855.

It is an arithmetic number, because the mean of its divisors is an integer number (24236781).

Almost surely, 2^64631414 is an apocalyptic number.

64631414 is a deficient number, since it is larger than the sum of its proper divisors (32315710).

64631414 is a wasteful number, since it uses less digits than its factorization.

64631414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32315709.

The product of its digits is 6912, while the sum is 29.

The square root of 64631414 is about 8039.3665173321. The cubic root of 64631414 is about 401.3111433950.

The spelling of 64631414 in words is "sixty-four million, six hundred thirty-one thousand, four hundred fourteen".