7779401 has 8 divisors (see below), whose sum is σ = 8991360. Its totient is φ = 6592608.

The previous prime is 7779397. The next prime is 7779403. The reversal of 7779401 is 1049777.

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 7779401 - 2² = 7779397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7779403) 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, 5621 + ... + 6866.

It is an arithmetic number, because the mean of its divisors is an integer number (1123920).

Almost surely, 2^7779401 is an apocalyptic number.

It is an amenable number.

7779401 is a deficient number, since it is larger than the sum of its proper divisors (1211959).

7779401 is a wasteful number, since it uses less digits than its factorization.

7779401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12583.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 7779401 is about 2789.1577581772. The cubic root of 7779401 is about 198.1445140946.

The spelling of 7779401 in words is "seven million, seven hundred seventy-nine thousand, four hundred one".