5091994 has 8 divisors (see below), whose sum is σ = 7901460. Its totient is φ = 2458176.

The previous prime is 5091991. The next prime is 5092007. The reversal of 5091994 is 4991905.

It can be written as a sum of positive squares in 2 ways, for example, as 4431025 + 660969 = 2105^2 + 813^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5091991) 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, 43839 + ... + 43954.

Almost surely, 2^5091994 is an apocalyptic number.

5091994 is a deficient number, since it is larger than the sum of its proper divisors (2809466).

5091994 is a wasteful number, since it uses less digits than its factorization.

5091994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87824.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 5091994 is about 2256.5447037451. The cubic root of 5091994 is about 172.0399447518.

The spelling of 5091994 in words is "five million, ninety-one thousand, nine hundred ninety-four".