4990397 has 8 divisors (see below), whose sum is σ = 5201280. Its totient is φ = 4783840.

The previous prime is 4990393. The next prime is 4990409. The reversal of 4990397 is 7930994.

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

It is a cyclic number.

It is not a de Polignac number, because 4990397 - 2² = 4990393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990393) 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, 1388 + ... + 3450.

It is an arithmetic number, because the mean of its divisors is an integer number (650160).

Almost surely, 2^4990397 is an apocalyptic number.

It is an amenable number.

4990397 is a deficient number, since it is larger than the sum of its proper divisors (210883).

4990397 is a wasteful number, since it uses less digits than its factorization.

4990397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 4990397 is about 2233.9196494055. The cubic root of 4990397 is about 170.8880518483. Note that the first 3 decimals are identical.

The spelling of 4990397 in words is "four million, nine hundred ninety thousand, three hundred ninety-seven".