3725291 has 4 divisors (see below), whose sum is σ = 3754752. Its totient is φ = 3695832.

The previous prime is 3725279. The next prime is 3725303. The reversal of 3725291 is 1925273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1925273 = 7 ⋅275039.

It is an interprime number because it is at equal distance from previous prime (3725279) and next prime (3725303).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3725291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3725221) 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, 14540 + ... + 14793.

It is an arithmetic number, because the mean of its divisors is an integer number (938688).

Almost surely, 2^3725291 is an apocalyptic number.

3725291 is a deficient number, since it is larger than the sum of its proper divisors (29461).

3725291 is a wasteful number, since it uses less digits than its factorization.

3725291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29460.

The product of its digits is 3780, while the sum is 29.

The square root of 3725291 is about 1930.1012926787. The cubic root of 3725291 is about 155.0196437122.

The spelling of 3725291 in words is "three million, seven hundred twenty-five thousand, two hundred ninety-one".