774991099 has 8 divisors (see below), whose sum is σ = 802676160. Its totient is φ = 747370176.

The previous prime is 774991081. The next prime is 774991109. The reversal of 774991099 is 990199477.

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 774991099 - 2¹⁷ = 774860027 is a prime.

It is a super-2 number, since 2×774991099² = 1201222407058455602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (774991039) 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, 9262 + ... + 40444.

It is an arithmetic number, because the mean of its divisors is an integer number (100334520).

Almost surely, 2^774991099 is an apocalyptic number.

774991099 is a deficient number, since it is larger than the sum of its proper divisors (27685061).

774991099 is a wasteful number, since it uses less digits than its factorization.

774991099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32069.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The square root of 774991099 is about 27838.6619470117. The cubic root of 774991099 is about 918.5417584468.

The spelling of 774991099 in words is "seven hundred seventy-four million, nine hundred ninety-one thousand, ninety-nine".