61900339 has 2 divisors, whose sum is σ = 61900340. Its totient is φ = 61900338.

The previous prime is 61900331. The next prime is 61900357. The reversal of 61900339 is 93300916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61900339 - 2³ = 61900331 is a prime.

It is a Chen prime.

It is equal to p_3668035 and since 61900339 and 3668035 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61900339.

It is not a weakly prime, because it can be changed into another prime (61900331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30950169 + 30950170.

It is an arithmetic number, because the mean of its divisors is an integer number (30950170).

Almost surely, 2^61900339 is an apocalyptic number.

61900339 is a deficient number, since it is larger than the sum of its proper divisors (1).

61900339 is an equidigital number, since it uses as much as digits as its factorization.

61900339 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 61900339 is about 7867.6768489815. The cubic root of 61900339 is about 395.5769787238.

The spelling of 61900339 in words is "sixty-one million, nine hundred thousand, three hundred thirty-nine".