7790401 has 2 divisors, whose sum is σ = 7790402. Its totient is φ = 7790400.

The previous prime is 7790359. The next prime is 7790407. The reversal of 7790401 is 1040977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7728400 + 62001 = 2780^2 + 249^2 .

It is a cyclic number.

It is not a de Polignac number, because 7790401 - 2⁷ = 7790273 is a prime.

It is an Ulam number.

It is equal to p₅₂₆₅₄₆ and since 7790401 and 526546 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7790401.

It is not a weakly prime, because it can be changed into another prime (7790407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3895200 + 3895201.

It is an arithmetic number, because the mean of its divisors is an integer number (3895201).

Almost surely, 2^7790401 is an apocalyptic number.

It is an amenable number.

7790401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7790401 is an equidigital number, since it uses as much as digits as its factorization.

7790401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 7790401 is about 2791.1289830461. The cubic root of 7790401 is about 198.2378616053.

The spelling of 7790401 in words is "seven million, seven hundred ninety thousand, four hundred one".