64422634 has 4 divisors (see below), whose sum is σ = 96633954. Its totient is φ = 32211316.

The previous prime is 64422629. The next prime is 64422697. The reversal of 64422634 is 43622446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34774609 + 29648025 = 5897^2 + 5445^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64422596 and 64422605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16105657 + ... + 16105660.

Almost surely, 2^64422634 is an apocalyptic number.

64422634 is a deficient number, since it is larger than the sum of its proper divisors (32211320).

64422634 is a wasteful number, since it uses less digits than its factorization.

64422634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32211319.

The product of its digits is 27648, while the sum is 31.

The square root of 64422634 is about 8026.3711601196. The cubic root of 64422634 is about 400.8785564337.

It can be divided in two parts, 64422 and 634, that added together give a palindrome (65056).

The spelling of 64422634 in words is "sixty-four million, four hundred twenty-two thousand, six hundred thirty-four".