61880827 has 4 divisors (see below), whose sum is σ = 63319960. Its totient is φ = 60441696.

The previous prime is 61880821. The next prime is 61880869. The reversal of 61880827 is 72808816.

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 61880827 - 2⁷ = 61880699 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 61880827.

It is not an unprimeable number, because it can be changed into a prime (61880821) 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, 719502 + ... + 719587.

It is an arithmetic number, because the mean of its divisors is an integer number (15829990).

Almost surely, 2^61880827 is an apocalyptic number.

61880827 is a deficient number, since it is larger than the sum of its proper divisors (1439133).

61880827 is a wasteful number, since it uses less digits than its factorization.

61880827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439132.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 61880827 is about 7866.4367409902. The cubic root of 61880827 is about 395.5354102431.

The spelling of 61880827 in words is "sixty-one million, eight hundred eighty thousand, eight hundred twenty-seven".