61650679 has 2 divisors, whose sum is σ = 61650680. Its totient is φ = 61650678.

The previous prime is 61650637. The next prime is 61650683. The reversal of 61650679 is 97605616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61650679 - 2¹⁷ = 61519607 is a prime.

It is a super-2 number, since 2×61650679² = 7601612442322082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61650629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30825339 + 30825340.

It is an arithmetic number, because the mean of its divisors is an integer number (30825340).

Almost surely, 2^61650679 is an apocalyptic number.

61650679 is a deficient number, since it is larger than the sum of its proper divisors (1).

61650679 is an equidigital number, since it uses as much as digits as its factorization.

61650679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 61650679 is about 7851.7946356231. The cubic root of 61650679 is about 395.0444408686.

The spelling of 61650679 in words is "sixty-one million, six hundred fifty thousand, six hundred seventy-nine".