4991307 has 8 divisors (see below), whose sum is σ = 6676176. Its totient is φ = 3316992.

The previous prime is 4991303. The next prime is 4991317. The reversal of 4991307 is 7031994.

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

It is not a de Polignac number, because 4991307 - 2² = 4991303 is a prime.

4991307 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4991303) 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, 1458 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (834522).

Almost surely, 2^4991307 is an apocalyptic number.

4991307 is a deficient number, since it is larger than the sum of its proper divisors (1684869).

4991307 is a wasteful number, since it uses less digits than its factorization.

4991307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 4991307 is about 2234.1233179930. The cubic root of 4991307 is about 170.8984383750.

The spelling of 4991307 in words is "four million, nine hundred ninety-one thousand, three hundred seven".