61962839 has 2 divisors, whose sum is σ = 61962840. Its totient is φ = 61962838.

The previous prime is 61962811. The next prime is 61962863. The reversal of 61962839 is 93826916.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61962839 - 2²⁰ = 60914263 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61962839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61962899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30981419 + 30981420.

It is an arithmetic number, because the mean of its divisors is an integer number (30981420).

Almost surely, 2^61962839 is an apocalyptic number.

61962839 is a deficient number, since it is larger than the sum of its proper divisors (1).

61962839 is an equidigital number, since it uses as much as digits as its factorization.

61962839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 61962839 is about 7871.6477944583. The cubic root of 61962839 is about 395.7100703202.

The spelling of 61962839 in words is "sixty-one million, nine hundred sixty-two thousand, eight hundred thirty-nine".