4990291 has 4 divisors (see below), whose sum is σ = 5162400. Its totient is φ = 4818184.

The previous prime is 4990277. The next prime is 4990303. The reversal of 4990291 is 1920994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1920994 = 2 ⋅960497.

It is a cyclic number.

It is not a de Polignac number, because 4990291 - 2⁵ = 4990259 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990201) 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, 86011 + ... + 86068.

It is an arithmetic number, because the mean of its divisors is an integer number (1290600).

Almost surely, 2^4990291 is an apocalyptic number.

4990291 is a deficient number, since it is larger than the sum of its proper divisors (172109).

4990291 is a wasteful number, since it uses less digits than its factorization.

4990291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172108.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 4990291 is about 2233.8959241648. The cubic root of 4990291 is about 170.8868419070.

The spelling of 4990291 in words is "four million, nine hundred ninety thousand, two hundred ninety-one".