2764391 has 8 divisors (see below), whose sum is σ = 3169440. Its totient is φ = 2361888.

The previous prime is 2764373. The next prime is 2764423. The reversal of 2764391 is 1934672.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2764391 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 (2764331) 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, 3545 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (396180).

2^2764391 is an apocalyptic number.

2764391 is a deficient number, since it is larger than the sum of its proper divisors (405049).

2764391 is an equidigital number, since it uses as much as digits as its factorization.

2764391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273.

The product of its digits is 9072, while the sum is 32.

The square root of 2764391 is about 1662.6457830819. The cubic root of 2764391 is about 140.3459302407.

The spelling of 2764391 in words is "two million, seven hundred sixty-four thousand, three hundred ninety-one".