61880839 has 8 divisors (see below), whose sum is σ = 63331632. Its totient is φ = 60440640.

The previous prime is 61880821. The next prime is 61880869. The reversal of 61880839 is 93808816.

It is a happy number.

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 61880839 - 2⁵ = 61880807 is a prime.

It is a super-4 number, since 4×61880839⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61880795 and 61880804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61880869) 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, 9844 + ... + 14854.

It is an arithmetic number, because the mean of its divisors is an integer number (7916454).

Almost surely, 2^61880839 is an apocalyptic number.

61880839 is a deficient number, since it is larger than the sum of its proper divisors (1450793).

61880839 is a wasteful number, since it uses less digits than its factorization.

61880839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 61880839 is about 7866.4375037243. The cubic root of 61880839 is about 395.5354358106.

The spelling of 61880839 in words is "sixty-one million, eight hundred eighty thousand, eight hundred thirty-nine".