4991367 has 4 divisors (see below), whose sum is σ = 6655160. Its totient is φ = 3327576.

The previous prime is 4991359. The next prime is 4991383. The reversal of 4991367 is 7631994.

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

It is not a de Polignac number, because 4991367 - 2³ = 4991359 is a prime.

It is a D-number.

It is a Duffinian number.

4991367 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991317) 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, 831892 + ... + 831897.

It is an arithmetic number, because the mean of its divisors is an integer number (1663790).

Almost surely, 2^4991367 is an apocalyptic number.

4991367 is a deficient number, since it is larger than the sum of its proper divisors (1663793).

4991367 is a wasteful number, since it uses less digits than its factorization.

4991367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663792.

The product of its digits is 40824, while the sum is 39.

The square root of 4991367 is about 2234.1367460386. The cubic root of 4991367 is about 170.8991231566.

The spelling of 4991367 in words is "four million, nine hundred ninety-one thousand, three hundred sixty-seven".