64401082 has 4 divisors (see below), whose sum is σ = 96601626. Its totient is φ = 32200540.

The previous prime is 64401079. The next prime is 64401091. The reversal of 64401082 is 28010446.

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., 64304361 + 96721 = 8019^2 + 311^2 .

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, 16100269 + ... + 16100272.

Almost surely, 2^64401082 is an apocalyptic number.

64401082 is a deficient number, since it is larger than the sum of its proper divisors (32200544).

64401082 is a wasteful number, since it uses less digits than its factorization.

64401082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32200543.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 64401082 is about 8025.0284734697. The cubic root of 64401082 is about 400.8338480358.

The spelling of 64401082 in words is "sixty-four million, four hundred one thousand, eighty-two".