2739739 has 4 divisors (see below), whose sum is σ = 2813824. Its totient is φ = 2665656.

The previous prime is 2739733. The next prime is 2739757. The reversal of 2739739 is 9379372.

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 2739739 - 2³ = 2739731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2739731) 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, 36987 + ... + 37060.

It is an arithmetic number, because the mean of its divisors is an integer number (703456).

2^2739739 is an apocalyptic number.

2739739 is a deficient number, since it is larger than the sum of its proper divisors (74085).

2739739 is an equidigital number, since it uses as much as digits as its factorization.

2739739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74084.

The product of its digits is 71442, while the sum is 40.

The square root of 2739739 is about 1655.2156959140. The cubic root of 2739739 is about 139.9274964718.

The spelling of 2739739 in words is "two million, seven hundred thirty-nine thousand, seven hundred thirty-nine".