774401401 has 4 divisors (see below), whose sum is σ = 779334052. Its totient is φ = 769468752.

The previous prime is 774401389. The next prime is 774401431. The reversal of 774401401 is 104104477.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354192400 + 420209001 = 18820^2 + 20499^2 .

It is a cyclic number.

It is not a de Polignac number, because 774401401 - 2⁷ = 774401273 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 774401401.

It is not an unprimeable number, because it can be changed into a prime (774401431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2466090 + ... + 2466403.

It is an arithmetic number, because the mean of its divisors is an integer number (194833513).

Almost surely, 2^774401401 is an apocalyptic number.

It is an amenable number.

774401401 is a deficient number, since it is larger than the sum of its proper divisors (4932651).

774401401 is a wasteful number, since it uses less digits than its factorization.

774401401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932650.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 774401401 is about 27828.0685819192. The cubic root of 774401401 is about 918.3087236494.

Adding to 774401401 its reverse (104104477), we get a palindrome (878505878).

The spelling of 774401401 in words is "seven hundred seventy-four million, four hundred one thousand, four hundred one".