775097949 has 16 divisors (see below), whose sum is σ = 1101513600. Its totient is φ = 483110400.

The previous prime is 775097923. The next prime is 775097957. The reversal of 775097949 is 949790577.

It is not a de Polignac number, because 775097949 - 2²⁷ = 640880221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775097909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42624 + ... + 58025.

It is an arithmetic number, because the mean of its divisors is an integer number (68844600).

Almost surely, 2^775097949 is an apocalyptic number.

It is an amenable number.

775097949 is a deficient number, since it is larger than the sum of its proper divisors (326415651).

775097949 is a wasteful number, since it uses less digits than its factorization.

775097949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100820.

The product of its (nonzero) digits is 5000940, while the sum is 57.

The square root of 775097949 is about 27840.5809745415. The cubic root of 775097949 is about 918.5839704054.

It can be divided in two parts, 77509 and 7949, that added together give a palindrome (85458).

The spelling of 775097949 in words is "seven hundred seventy-five million, ninety-seven thousand, nine hundred forty-nine".