2739961 has 16 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 2237760.

The previous prime is 2739931. The next prime is 2739973. The reversal of 2739961 is 1699372.

It is not a de Polignac number, because 2739961 - 2¹⁷ = 2608889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 2739961.

It is not an unprimeable number, because it can be changed into a prime (2739931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18315 + ... + 18463.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2^2739961 is an apocalyptic number.

It is an amenable number.

2739961 is a deficient number, since it is larger than the sum of its proper divisors (543239).

2739961 is a wasteful number, since it uses less digits than its factorization.

2739961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 20412, while the sum is 37.

The square root of 2739961 is about 1655.2827553019. The cubic root of 2739961 is about 139.9312757935.

The spelling of 2739961 in words is "two million, seven hundred thirty-nine thousand, nine hundred sixty-one".