64693401 has 8 divisors (see below), whose sum is σ = 86306784. Its totient is φ = 43104480.

The previous prime is 64693399. The next prime is 64693439. The reversal of 64693401 is 10439646.

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

It is not a de Polignac number, because 64693401 - 2¹ = 64693399 is a prime.

It is a super-2 number, since 2×64693401² = 8370472265893602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64693451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366 + ... + 11456.

It is an arithmetic number, because the mean of its divisors is an integer number (10788348).

Almost surely, 2^64693401 is an apocalyptic number.

It is an amenable number.

64693401 is a deficient number, since it is larger than the sum of its proper divisors (21613383).

64693401 is a wasteful number, since it uses less digits than its factorization.

64693401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12231.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 64693401 is about 8043.2208100984. The cubic root of 64693401 is about 401.4393995262.

It can be divided in two parts, 6469 and 3401, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 64693401 in words is "sixty-four million, six hundred ninety-three thousand, four hundred one".