93661951 has 2 divisors, whose sum is σ = 93661952. Its totient is φ = 93661950.

The previous prime is 93661933. The next prime is 93661979. The reversal of 93661951 is 15916639.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 93661951 - 2¹⁹ = 93137663 is a prime.

It is a super-2 number, since 2×93661951² = 17545122130252802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93661991) 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, 46830975 + 46830976.

It is an arithmetic number, because the mean of its divisors is an integer number (46830976).

Almost surely, 2^93661951 is an apocalyptic number.

93661951 is a deficient number, since it is larger than the sum of its proper divisors (1).

93661951 is an equidigital number, since it uses as much as digits as its factorization.

93661951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 93661951 is about 9677.9104666245. The cubic root of 93661951 is about 454.1378853050.

The spelling of 93661951 in words is "ninety-three million, six hundred sixty-one thousand, nine hundred fifty-one".