774248397 has 16 divisors (see below), whose sum is σ = 1127403648. Its totient is φ = 469748160.

The previous prime is 774248359. The next prime is 774248399. The reversal of 774248397 is 793842477.

It is not a de Polignac number, because 774248397 - 2¹⁴ = 774232013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774248399) 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, 137038 + ... + 142575.

It is an arithmetic number, because the mean of its divisors is an integer number (70462728).

Almost surely, 2^774248397 is an apocalyptic number.

It is an amenable number.

774248397 is a deficient number, since it is larger than the sum of its proper divisors (353155251).

774248397 is a wasteful number, since it uses less digits than its factorization.

774248397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279700.

The product of its digits is 2370816, while the sum is 51.

The square root of 774248397 is about 27825.3193512671. The cubic root of 774248397 is about 918.2482407343.

The spelling of 774248397 in words is "seven hundred seventy-four million, two hundred forty-eight thousand, three hundred ninety-seven".