61300399 has 2 divisors, whose sum is σ = 61300400. Its totient is φ = 61300398.

The previous prime is 61300387. The next prime is 61300409. The reversal of 61300399 is 99300316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61300399 - 2⁵ = 61300367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61300399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61300999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30650199 + 30650200.

It is an arithmetic number, because the mean of its divisors is an integer number (30650200).

Almost surely, 2^61300399 is an apocalyptic number.

61300399 is a deficient number, since it is larger than the sum of its proper divisors (1).

61300399 is an equidigital number, since it uses as much as digits as its factorization.

61300399 is an evil number, because the sum of its binary digits is even.

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

The square root of 61300399 is about 7829.4571331606. The cubic root of 61300399 is about 394.2948461656.

The spelling of 61300399 in words is "sixty-one million, three hundred thousand, three hundred ninety-nine".