61300939 has 4 divisors (see below), whose sum is σ = 70058224. Its totient is φ = 52543656.

The previous prime is 61300933. The next prime is 61300961. The reversal of 61300939 is 93900316.

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 61300939 - 2⁹ = 61300427 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 61300939.

It is not an unprimeable number, because it can be changed into a prime (61300933) 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, 4378632 + ... + 4378645.

It is an arithmetic number, because the mean of its divisors is an integer number (17514556).

Almost surely, 2^61300939 is an apocalyptic number.

61300939 is a deficient number, since it is larger than the sum of its proper divisors (8757285).

61300939 is an equidigital number, since it uses as much as digits as its factorization.

61300939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8757284.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 61300939 is about 7829.4916182342. The cubic root of 61300939 is about 394.2960039535.

The spelling of 61300939 in words is "sixty-one million, three hundred thousand, nine hundred thirty-nine".