61682311 has 4 divisors (see below), whose sum is σ = 61710192. Its totient is φ = 61654432.

The previous prime is 61682279. The next prime is 61682321. The reversal of 61682311 is 11328616.

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 61682311 - 2⁵ = 61682279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61682311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61682321) 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, 10306 + ... + 15151.

It is an arithmetic number, because the mean of its divisors is an integer number (15427548).

Almost surely, 2^61682311 is an apocalyptic number.

61682311 is a deficient number, since it is larger than the sum of its proper divisors (27881).

61682311 is a wasteful number, since it uses less digits than its factorization.

61682311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27880.

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

The square root of 61682311 is about 7853.8086938759. The cubic root of 61682311 is about 395.1119930263. Note that the first 3 decimals are identical.

The spelling of 61682311 in words is "sixty-one million, six hundred eighty-two thousand, three hundred eleven".