2997494421 has 4 divisors (see below), whose sum is σ = 3996659232. Its totient is φ = 1998329612.

The previous prime is 2997494413. The next prime is 2997494429. The reversal of 2997494421 is 1244947992.

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.

It is an interprime number because it is at equal distance from previous prime (2997494413) and next prime (2997494429).

It is a cyclic number.

It is not a de Polignac number, because 2997494421 - 2³ = 2997494413 is a prime.

It is a super-2 number, since 2×2997494421² = 17969945607852250482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2997494429) 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, 499582401 + ... + 499582406.

It is an arithmetic number, because the mean of its divisors is an integer number (999164808).

Almost surely, 2^2997494421 is an apocalyptic number.

It is an amenable number.

2997494421 is a deficient number, since it is larger than the sum of its proper divisors (999164811).

2997494421 is an equidigital number, since it uses as much as digits as its factorization.

2997494421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999164810.

The product of its digits is 1306368, while the sum is 51.

The square root of 2997494421 is about 54749.3782704425. The cubic root of 2997494421 is about 1441.8479395585.

The spelling of 2997494421 in words is "two billion, nine hundred ninety-seven million, four hundred ninety-four thousand, four hundred twenty-one".