775270772 has 6 divisors (see below), whose sum is σ = 1356723858. Its totient is φ = 387635384.

The previous prime is 775270757. The next prime is 775270787. The reversal of 775270772 is 277072577.

It is an interprime number because it is at equal distance from previous prime (775270757) and next prime (775270787).

It can be written as a sum of positive squares in only one way, i.e., 402162916 + 373107856 = 20054^2 + 19316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96908843 + ... + 96908850.

It is an arithmetic number, because the mean of its divisors is an integer number (226120643).

Almost surely, 2^775270772 is an apocalyptic number.

It is an amenable number.

775270772 is a deficient number, since it is larger than the sum of its proper divisors (581453086).

775270772 is a wasteful number, since it uses less digits than its factorization.

775270772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193817697 (or 193817695 counting only the distinct ones).

The product of its (nonzero) digits is 336140, while the sum is 44.

The square root of 775270772 is about 27843.6845981275. The cubic root of 775270772 is about 918.6522373215.

The spelling of 775270772 in words is "seven hundred seventy-five million, two hundred seventy thousand, seven hundred seventy-two".