94991569 has 8 divisors (see below), whose sum is σ = 96455880. Its totient is φ = 93536256.

The previous prime is 94991557. The next prime is 94991573. The reversal of 94991569 is 96519949.

It can be written as a sum of positive squares in 4 ways, for example, as 4494400 + 90497169 = 2120^2 + 9513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 94991569 - 2²⁵ = 61437137 is a prime.

It is a super-4 number, since 4×94991569⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94991509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20797 + ... + 24949.

It is an arithmetic number, because the mean of its divisors is an integer number (12056985).

Almost surely, 2^94991569 is an apocalyptic number.

It is an amenable number.

94991569 is a deficient number, since it is larger than the sum of its proper divisors (1464311).

94991569 is a wasteful number, since it uses less digits than its factorization.

94991569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499.

The product of its digits is 787320, while the sum is 52.

The square root of 94991569 is about 9746.3618340384. The cubic root of 94991569 is about 456.2767649527.

The spelling of 94991569 in words is "ninety-four million, nine hundred ninety-one thousand, five hundred sixty-nine".