79425401 has 4 divisors (see below), whose sum is σ = 86645904. Its totient is φ = 72204900.

The previous prime is 79425397. The next prime is 79425407. The reversal of 79425401 is 10452497.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10452497 = 11 ⋅950227.

It is a cyclic number.

It is not a de Polignac number, because 79425401 - 2² = 79425397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79425407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3610235 + ... + 3610256.

It is an arithmetic number, because the mean of its divisors is an integer number (21661476).

Almost surely, 2^79425401 is an apocalyptic number.

It is an amenable number.

79425401 is a deficient number, since it is larger than the sum of its proper divisors (7220503).

79425401 is a wasteful number, since it uses less digits than its factorization.

79425401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220502.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 79425401 is about 8912.0929640573. The cubic root of 79425401 is about 429.8528449049.

Adding to 79425401 its reverse (10452497), we get a palindrome (89877898).

The spelling of 79425401 in words is "seventy-nine million, four hundred twenty-five thousand, four hundred one".