2936991 has 4 divisors (see below), whose sum is σ = 3915992. Its totient is φ = 1957992.

The previous prime is 2936987. The next prime is 2936993. The reversal of 2936991 is 1996392.

It is a happy number.

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

It is not a de Polignac number, because 2936991 - 2² = 2936987 is a prime.

It is a super-2 number, since 2×2936991² = 17251832268162, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2936993) 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, 489496 + ... + 489501.

It is an arithmetic number, because the mean of its divisors is an integer number (978998).

2^2936991 is an apocalyptic number.

2936991 is a deficient number, since it is larger than the sum of its proper divisors (979001).

2936991 is an equidigital number, since it uses as much as digits as its factorization.

2936991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979000.

The product of its digits is 26244, while the sum is 39.

The square root of 2936991 is about 1713.7651531059. The cubic root of 2936991 is about 143.2080854074.

The spelling of 2936991 in words is "two million, nine hundred thirty-six thousand, nine hundred ninety-one".