64989962 has 4 divisors (see below), whose sum is σ = 97484946. Its totient is φ = 32494980.

The previous prime is 64989959. The next prime is 64989983. The reversal of 64989962 is 26998946.

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., 63218401 + 1771561 = 7951^2 + 1331^2 .

It is a super-2 number, since 2×64989962² = 8447390321522888, 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, 16247489 + ... + 16247492.

Almost surely, 2^64989962 is an apocalyptic number.

64989962 is a deficient number, since it is larger than the sum of its proper divisors (32494984).

64989962 is a wasteful number, since it uses less digits than its factorization.

64989962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32494983.

The product of its digits is 1679616, while the sum is 53.

The square root of 64989962 is about 8061.6351939293. The cubic root of 64989962 is about 402.0518773343.

The spelling of 64989962 in words is "sixty-four million, nine hundred eighty-nine thousand, nine hundred sixty-two".