2997009381 has 4 divisors (see below), whose sum is σ = 3996012512. Its totient is φ = 1998006252.

The previous prime is 2997009347. The next prime is 2997009383. The reversal of 2997009381 is 1839007992.

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 not a de Polignac number, because 2997009381 - 2⁶ = 2997009317 is a prime.

It is a super-2 number, since 2×2997009381² = 17964130459604006322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2997009381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2997009383) 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, 499501561 + ... + 499501566.

It is an arithmetic number, because the mean of its divisors is an integer number (999003128).

Almost surely, 2^2997009381 is an apocalyptic number.

It is an amenable number.

2997009381 is a deficient number, since it is larger than the sum of its proper divisors (999003131).

2997009381 is an equidigital number, since it uses as much as digits as its factorization.

2997009381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999003130.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 2997009381 is about 54744.9484518891. The cubic root of 2997009381 is about 1441.7701644179.

The spelling of 2997009381 in words is "two billion, nine hundred ninety-seven million, nine thousand, three hundred eighty-one".