94121869 has 2 divisors, whose sum is σ = 94121870. Its totient is φ = 94121868.

The previous prime is 94121857. The next prime is 94121873. The reversal of 94121869 is 96812149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55308969 + 38812900 = 7437^2 + 6230^2 .

It is a cyclic number.

It is not a de Polignac number, because 94121869 - 2⁵ = 94121837 is a prime.

It is a super-2 number, since 2×94121869² = 17717852448106322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94121899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47060934 + 47060935.

It is an arithmetic number, because the mean of its divisors is an integer number (47060935).

Almost surely, 2^94121869 is an apocalyptic number.

It is an amenable number.

94121869 is a deficient number, since it is larger than the sum of its proper divisors (1).

94121869 is an equidigital number, since it uses as much as digits as its factorization.

94121869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 94121869 is about 9701.6425928809. The cubic root of 94121869 is about 454.8800053898.

The spelling of 94121869 in words is "ninety-four million, one hundred twenty-one thousand, eight hundred sixty-nine".