773280137 has 16 divisors (see below), whose sum is σ = 919649280. Its totient is φ = 636409872.

The previous prime is 773280121. The next prime is 773280161. The reversal of 773280137 is 731082377.

It is not a de Polignac number, because 773280137 - 2⁴ = 773280121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 773280137.

It is not an unprimeable number, because it can be changed into a prime (773280187) 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, 4013 + ... + 39530.

It is an arithmetic number, because the mean of its divisors is an integer number (57478080).

Almost surely, 2^773280137 is an apocalyptic number.

It is an amenable number.

773280137 is a deficient number, since it is larger than the sum of its proper divisors (146369143).

773280137 is a wasteful number, since it uses less digits than its factorization.

773280137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43652.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 773280137 is about 27807.9150063431. The cubic root of 773280137 is about 917.8652999217.

The spelling of 773280137 in words is "seven hundred seventy-three million, two hundred eighty thousand, one hundred thirty-seven".