773250981 has 4 divisors (see below), whose sum is σ = 1031001312. Its totient is φ = 515500652.

The previous prime is 773250941. The next prime is 773251009. The reversal of 773250981 is 189052377.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 773250981 - 2⁷ = 773250853 is a prime.

It is a super-2 number, since 2×773250981² = 1195834159234924722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773250911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128875161 + ... + 128875166.

It is an arithmetic number, because the mean of its divisors is an integer number (257750328).

Almost surely, 2^773250981 is an apocalyptic number.

It is an amenable number.

773250981 is a deficient number, since it is larger than the sum of its proper divisors (257750331).

773250981 is a wasteful number, since it uses less digits than its factorization.

773250981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257750330.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 773250981 is about 27807.3907621697. The cubic root of 773250981 is about 917.8537639484.

The spelling of 773250981 in words is "seven hundred seventy-three million, two hundred fifty thousand, nine hundred eighty-one".