61926817 has 2 divisors, whose sum is σ = 61926818. Its totient is φ = 61926816.

The previous prime is 61926811. The next prime is 61926841. The reversal of 61926817 is 71862916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 9740641 = 7224^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 61926817 - 2¹⁹ = 61402529 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 61926817.

It is not a weakly prime, because it can be changed into another prime (61926811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30963408 + 30963409.

It is an arithmetic number, because the mean of its divisors is an integer number (30963409).

Almost surely, 2^61926817 is an apocalyptic number.

It is an amenable number.

61926817 is a deficient number, since it is larger than the sum of its proper divisors (1).

61926817 is an equidigital number, since it uses as much as digits as its factorization.

61926817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 61926817 is about 7869.3593767218. The cubic root of 61926817 is about 395.6333736447.

The spelling of 61926817 in words is "sixty-one million, nine hundred twenty-six thousand, eight hundred seventeen".