64606546 has 4 divisors (see below), whose sum is σ = 96909822. Its totient is φ = 32303272.

The previous prime is 64606541. The next prime is 64606583. The reversal of 64606546 is 64560646.

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., 59367025 + 5239521 = 7705^2 + 2289^2 .

It is not an unprimeable number, because it can be changed into a prime (64606541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16151635 + ... + 16151638.

Almost surely, 2^64606546 is an apocalyptic number.

64606546 is a deficient number, since it is larger than the sum of its proper divisors (32303276).

64606546 is a wasteful number, since it uses less digits than its factorization.

64606546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32303275.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 64606546 is about 8037.8197292549. The cubic root of 64606546 is about 401.2596664370.

The spelling of 64606546 in words is "sixty-four million, six hundred six thousand, five hundred forty-six".