64645414 has 4 divisors (see below), whose sum is σ = 96968124. Its totient is φ = 32322706.

The previous prime is 64645307. The next prime is 64645457. The reversal of 64645414 is 41454646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41454646 = 2 ⋅20727323.

It is a self number, because there is not a number n which added to its sum of digits gives 64645414.

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, 16161352 + ... + 16161355.

It is an arithmetic number, because the mean of its divisors is an integer number (24242031).

Almost surely, 2^64645414 is an apocalyptic number.

64645414 is a deficient number, since it is larger than the sum of its proper divisors (32322710).

64645414 is a wasteful number, since it uses less digits than its factorization.

64645414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32322709.

The product of its digits is 46080, while the sum is 34.

The square root of 64645414 is about 8040.2371855562. The cubic root of 64645414 is about 401.3401176974.

The spelling of 64645414 in words is "sixty-four million, six hundred forty-five thousand, four hundred fourteen".