7900099 has 4 divisors (see below), whose sum is σ = 8011440. Its totient is φ = 7788760.

The previous prime is 7900091. The next prime is 7900103. The reversal of 7900099 is 9900097.

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

It is a cyclic number.

It is not a de Polignac number, because 7900099 - 2³ = 7900091 is a prime.

It is a Duffinian number.

7900099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7900091) 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, 55564 + ... + 55705.

It is an arithmetic number, because the mean of its divisors is an integer number (2002860).

Almost surely, 2^7900099 is an apocalyptic number.

7900099 is a deficient number, since it is larger than the sum of its proper divisors (111341).

7900099 is a wasteful number, since it uses less digits than its factorization.

7900099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111340.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 7900099 is about 2810.7114757655. The cubic root of 7900099 is about 199.1640020729.

The spelling of 7900099 in words is "seven million, nine hundred thousand, ninety-nine".