61311862 has 8 divisors (see below), whose sum is σ = 94934592. Its totient is φ = 29667000.

The previous prime is 61311823. The next prime is 61311863. The reversal of 61311862 is 26811316.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61311862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61311863) 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, 494389 + ... + 494512.

It is an arithmetic number, because the mean of its divisors is an integer number (11866824).

Almost surely, 2^61311862 is an apocalyptic number.

61311862 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

61311862 is a deficient number, since it is larger than the sum of its proper divisors (33622730).

61311862 is a wasteful number, since it uses less digits than its factorization.

61311862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988934.

The product of its digits is 1728, while the sum is 28.

The square root of 61311862 is about 7830.1891420323. The cubic root of 61311862 is about 394.3194219715.

The spelling of 61311862 in words is "sixty-one million, three hundred eleven thousand, eight hundred sixty-two".