2913945 has 8 divisors (see below), whose sum is σ = 4662336. Its totient is φ = 1554096.

The previous prime is 2913943. The next prime is 2913961. The reversal of 2913945 is 5493192.

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

It is not a de Polignac number, because 2913945 - 2¹ = 2913943 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2913943) 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, 97117 + ... + 97146.

It is an arithmetic number, because the mean of its divisors is an integer number (582792).

2^2913945 is an apocalyptic number.

It is an amenable number.

2913945 is a deficient number, since it is larger than the sum of its proper divisors (1748391).

2913945 is a wasteful number, since it uses less digits than its factorization.

2913945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194271.

The product of its digits is 9720, while the sum is 33.

The square root of 2913945 is about 1707.0281192763. The cubic root of 2913945 is about 142.8325259964.

The spelling of 2913945 in words is "two million, nine hundred thirteen thousand, nine hundred forty-five".