2940991 has 4 divisors (see below), whose sum is σ = 3095800. Its totient is φ = 2786184.

The previous prime is 2940989. The next prime is 2941007. The reversal of 2940991 is 1990492.

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

It is a cyclic number.

It is not a de Polignac number, because 2940991 - 2¹ = 2940989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2940911) 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, 77376 + ... + 77413.

It is an arithmetic number, because the mean of its divisors is an integer number (773950).

2^2940991 is an apocalyptic number.

2940991 is a deficient number, since it is larger than the sum of its proper divisors (154809).

2940991 is a wasteful number, since it uses less digits than its factorization.

2940991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154808.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 2940991 is about 1714.9317770687. The cubic root of 2940991 is about 143.2730694318.

The spelling of 2940991 in words is "two million, nine hundred forty thousand, nine hundred ninety-one".