2991351 has 8 divisors (see below), whose sum is σ = 4351104. Its totient is φ = 1812920.

The previous prime is 2991299. The next prime is 2991353. The reversal of 2991351 is 1531992.

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

It is a cyclic number.

It is not a de Polignac number, because 2991351 - 2⁹ = 2990839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45291 + ... + 45356.

It is an arithmetic number, because the mean of its divisors is an integer number (543888).

2^2991351 is an apocalyptic number.

2991351 is a deficient number, since it is larger than the sum of its proper divisors (1359753).

2991351 is a wasteful number, since it uses less digits than its factorization.

2991351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90661.

The product of its digits is 2430, while the sum is 30.

The square root of 2991351 is about 1729.5522541976. The cubic root of 2991351 is about 144.0862234385.

The spelling of 2991351 in words is "two million, nine hundred ninety-one thousand, three hundred fifty-one".