15077993 has 8 divisors (see below), whose sum is σ = 17633088. Its totient is φ = 12623184.

The previous prime is 15077977. The next prime is 15078013. The reversal of 15077993 is 39977051.

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

It is not a de Polignac number, because 15077993 - 2⁴ = 15077977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15077993.

It is not an unprimeable number, because it can be changed into a prime (15077893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24746 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (2204136).

Almost surely, 2^15077993 is an apocalyptic number.

It is an amenable number.

15077993 is a deficient number, since it is larger than the sum of its proper divisors (2555095).

15077993 is an equidigital number, since it uses as much as digits as its factorization.

15077993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50143.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 15077993 is about 3883.0391447937. The cubic root of 15077993 is about 247.0479071352.

The spelling of 15077993 in words is "fifteen million, seventy-seven thousand, nine hundred ninety-three".