64117946 has 4 divisors (see below), whose sum is σ = 96176922. Its totient is φ = 32058972.

The previous prime is 64117903. The next prime is 64117981. The reversal of 64117946 is 64971146.

It is a happy number.

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., 32364721 + 31753225 = 5689^2 + 5635^2 .

It is a super-2 number, since 2×64117946² = 8222221998517832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16029485 + ... + 16029488.

Almost surely, 2^64117946 is an apocalyptic number.

64117946 is a deficient number, since it is larger than the sum of its proper divisors (32058976).

64117946 is a wasteful number, since it uses less digits than its factorization.

64117946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32058975.

The product of its digits is 36288, while the sum is 38.

The square root of 64117946 is about 8007.3682318225. The cubic root of 64117946 is about 400.2455700409.

The spelling of 64117946 in words is "sixty-four million, one hundred seventeen thousand, nine hundred forty-six".