61864862 has 4 divisors (see below), whose sum is σ = 92797296. Its totient is φ = 30932430.

The previous prime is 61864861. The next prime is 61864867. The reversal of 61864862 is 26846816.

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

It is a super-2 number, since 2×61864862² = 7654522300558088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61864861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15466214 + ... + 15466217.

It is an arithmetic number, because the mean of its divisors is an integer number (23199324).

Almost surely, 2^61864862 is an apocalyptic number.

61864862 is a deficient number, since it is larger than the sum of its proper divisors (30932434).

61864862 is a wasteful number, since it uses less digits than its factorization.

61864862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30932433.

The product of its digits is 110592, while the sum is 41.

The square root of 61864862 is about 7865.4219212958. The cubic root of 61864862 is about 395.5013918119.

It can be divided in two parts, 61864 and 862, that added together give a palindrome (62726).

The spelling of 61864862 in words is "sixty-one million, eight hundred sixty-four thousand, eight hundred sixty-two".