2997998 has 8 divisors (see below), whose sum is σ = 4582008. Its totient is φ = 1470664.

The previous prime is 2997997. The next prime is 2998007. The reversal of 2997998 is 8997992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2997997) 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, 14036 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (572751).

2^2997998 is an apocalyptic number.

2997998 is a deficient number, since it is larger than the sum of its proper divisors (1584010).

2997998 is a wasteful number, since it uses less digits than its factorization.

2997998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28338.

The product of its digits is 734832, while the sum is 53.

The square root of 2997998 is about 1731.4727834996. The cubic root of 2997998 is about 144.1928678512.

The spelling of 2997998 in words is "two million, nine hundred ninety-seven thousand, nine hundred ninety-eight".