64873874 has 8 divisors (see below), whose sum is σ = 104796300. Its totient is φ = 29941776.

The previous prime is 64873871. The next prime is 64873903. The reversal of 64873874 is 47837846.

It can be written as a sum of positive squares in 2 ways, for example, as 58905625 + 5968249 = 7675^2 + 2443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64873871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247549 + ... + 1247600.

Almost surely, 2^64873874 is an apocalyptic number.

64873874 is a deficient number, since it is larger than the sum of its proper divisors (39922426).

64873874 is a wasteful number, since it uses less digits than its factorization.

64873874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495164.

The product of its digits is 903168, while the sum is 47.

The square root of 64873874 is about 8054.4319476919. The cubic root of 64873874 is about 401.8123469281.

The spelling of 64873874 in words is "sixty-four million, eight hundred seventy-three thousand, eight hundred seventy-four".