7199427 has 4 divisors (see below), whose sum is σ = 9599240. Its totient is φ = 4799616.

The previous prime is 7199419. The next prime is 7199429. The reversal of 7199427 is 7249917.

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

It is not a de Polignac number, because 7199427 - 2³ = 7199419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7199429) 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, 1199902 + ... + 1199907.

It is an arithmetic number, because the mean of its divisors is an integer number (2399810).

Almost surely, 2^7199427 is an apocalyptic number.

7199427 is a deficient number, since it is larger than the sum of its proper divisors (2399813).

7199427 is a wasteful number, since it uses less digits than its factorization.

7199427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399812.

The product of its digits is 31752, while the sum is 39.

The square root of 7199427 is about 2683.1747986294. The cubic root of 7199427 is about 193.0927543277.

It can be divided in two parts, 7199 and 427, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 7199427 in words is "seven million, one hundred ninety-nine thousand, four hundred twenty-seven".