64498855 has 8 divisors (see below), whose sum is σ = 78008832. Its totient is φ = 51192288.

The previous prime is 64498853. The next prime is 64498883. The reversal of 64498855 is 55889446.

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

It is a cyclic number.

It is not a de Polignac number, because 64498855 - 2¹ = 64498853 is a prime.

It is a super-2 number, since 2×64498855² = 8320204592622050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64498799 and 64498808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64498853) 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, 50152 + ... + 51421.

It is an arithmetic number, because the mean of its divisors is an integer number (9751104).

Almost surely, 2^64498855 is an apocalyptic number.

64498855 is a deficient number, since it is larger than the sum of its proper divisors (13509977).

64498855 is a wasteful number, since it uses less digits than its factorization.

64498855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101705.

The product of its digits is 1382400, while the sum is 49.

The square root of 64498855 is about 8031.1179172018. The cubic root of 64498855 is about 401.0365926188.

It can be divided in two parts, 644 and 98855, that added together give a palindrome (99499).

The spelling of 64498855 in words is "sixty-four million, four hundred ninety-eight thousand, eight hundred fifty-five".