64990262 has 4 divisors (see below), whose sum is σ = 97485396. Its totient is φ = 32495130.

The previous prime is 64990253. The next prime is 64990301. The reversal of 64990262 is 26209946.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16247564 + ... + 16247567.

It is an arithmetic number, because the mean of its divisors is an integer number (24371349).

Almost surely, 2^64990262 is an apocalyptic number.

64990262 is a deficient number, since it is larger than the sum of its proper divisors (32495134).

64990262 is a wasteful number, since it uses less digits than its factorization.

64990262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32495133.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 64990262 is about 8061.6538005548. The cubic root of 64990262 is about 402.0524959702.

The spelling of 64990262 in words is "sixty-four million, nine hundred ninety thousand, two hundred sixty-two".