64697606 has 4 divisors (see below), whose sum is σ = 97046412. Its totient is φ = 32348802.

The previous prime is 64697599. The next prime is 64697609. The reversal of 64697606 is 60679646.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64697609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16174400 + ... + 16174403.

It is an arithmetic number, because the mean of its divisors is an integer number (24261603).

Almost surely, 2^64697606 is an apocalyptic number.

64697606 is a deficient number, since it is larger than the sum of its proper divisors (32348806).

64697606 is a wasteful number, since it uses less digits than its factorization.

64697606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32348805.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 64697606 is about 8043.4822061095. The cubic root of 64697606 is about 401.4480970444.

The spelling of 64697606 in words is "sixty-four million, six hundred ninety-seven thousand, six hundred six".