64298899 has 4 divisors (see below), whose sum is σ = 73484464. Its totient is φ = 55113336.

The previous prime is 64298893. The next prime is 64298917. The reversal of 64298899 is 99889246.

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

It is a cyclic number.

It is not a de Polignac number, because 64298899 - 2³ = 64298891 is a prime.

It is a super-2 number, since 2×64298899² = 8268696825224402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64298891) 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, 4592772 + ... + 4592785.

It is an arithmetic number, because the mean of its divisors is an integer number (18371116).

Almost surely, 2^64298899 is an apocalyptic number.

64298899 is a deficient number, since it is larger than the sum of its proper divisors (9185565).

64298899 is an equidigital number, since it uses as much as digits as its factorization.

64298899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9185564.

The product of its digits is 2239488, while the sum is 55.

The square root of 64298899 is about 8018.6594266124. The cubic root of 64298899 is about 400.6217393497.

The spelling of 64298899 in words is "sixty-four million, two hundred ninety-eight thousand, eight hundred ninety-nine".