775520377 has 8 divisors (see below), whose sum is σ = 796584096. Its totient is φ = 754735872.

The previous prime is 775520353. The next prime is 775520401. The reversal of 775520377 is 773025577.

It is an interprime number because it is at equal distance from previous prime (775520353) and next prime (775520401).

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 775520377 - 2²³ = 767131769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (775520177) 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, 64168 + ... + 75289.

It is an arithmetic number, because the mean of its divisors is an integer number (99573012).

Almost surely, 2^775520377 is an apocalyptic number.

It is an amenable number.

775520377 is a deficient number, since it is larger than the sum of its proper divisors (21063719).

775520377 is a wasteful number, since it uses less digits than its factorization.

775520377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139607.

The product of its (nonzero) digits is 360150, while the sum is 43.

The square root of 775520377 is about 27848.1664926077. The cubic root of 775520377 is about 918.7508160358.

The spelling of 775520377 in words is "seven hundred seventy-five million, five hundred twenty thousand, three hundred seventy-seven".