4957999 has 4 divisors (see below), whose sum is σ = 5249664. Its totient is φ = 4666336.

The previous prime is 4957987. The next prime is 4958011. The reversal of 4957999 is 9997594.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4957987) and next prime (4958011).

It is a cyclic number.

It is not a de Polignac number, because 4957999 - 2⁷ = 4957871 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 (4957919) 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, 145807 + ... + 145840.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^4957999 is an apocalyptic number.

4957999 is a deficient number, since it is larger than the sum of its proper divisors (291665).

4957999 is a wasteful number, since it uses less digits than its factorization.

4957999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291664.

The product of its digits is 918540, while the sum is 52.

The square root of 4957999 is about 2226.6564620525. The cubic root of 4957999 is about 170.5174430258.

The spelling of 4957999 in words is "four million, nine hundred fifty-seven thousand, nine hundred ninety-nine".