8190749 has 4 divisors (see below), whose sum is σ = 9360864. Its totient is φ = 7020636.

The previous prime is 8190701. The next prime is 8190751. The reversal of 8190749 is 9470918.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8190749 - 2⁸ = 8190493 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 (8190449) 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, 585047 + ... + 585060.

It is an arithmetic number, because the mean of its divisors is an integer number (2340216).

Almost surely, 2^8190749 is an apocalyptic number.

It is an amenable number.

8190749 is a deficient number, since it is larger than the sum of its proper divisors (1170115).

8190749 is a wasteful number, since it uses less digits than its factorization.

8190749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170114.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 8190749 is about 2861.9484621495. The cubic root of 8190749 is about 201.5771059944.

The spelling of 8190749 in words is "eight million, one hundred ninety thousand, seven hundred forty-nine".