61961707 has 2 divisors, whose sum is σ = 61961708. Its totient is φ = 61961706.

The previous prime is 61961687. The next prime is 61961723. The reversal of 61961707 is 70716916.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61961707 - 2¹¹ = 61959659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61961797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30980853 + 30980854.

It is an arithmetic number, because the mean of its divisors is an integer number (30980854).

Almost surely, 2^61961707 is an apocalyptic number.

61961707 is a deficient number, since it is larger than the sum of its proper divisors (1).

61961707 is an equidigital number, since it uses as much as digits as its factorization.

61961707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 61961707 is about 7871.5758905063. The cubic root of 61961707 is about 395.7076605612.

It can be divided in two parts, 619 and 61707, that added together give a palindrome (62326).

The spelling of 61961707 in words is "sixty-one million, nine hundred sixty-one thousand, seven hundred seven".