8137949 has 8 divisors (see below), whose sum is σ = 8392320. Its totient is φ = 7887600.

The previous prime is 8137931. The next prime is 8137957. The reversal of 8137949 is 9497318.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8137949 - 2²⁰ = 7089373 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 1 + 3⁸ + 7⁸ + 9³ + 4⁹ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8137919) 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, 3392 + ... + 5270.

It is an arithmetic number, because the mean of its divisors is an integer number (1049040).

Almost surely, 2^8137949 is an apocalyptic number.

It is an amenable number.

8137949 is a deficient number, since it is larger than the sum of its proper divisors (254371).

8137949 is a wasteful number, since it uses less digits than its factorization.

8137949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its digits is 54432, while the sum is 41.

The square root of 8137949 is about 2852.7090633291. The cubic root of 8137949 is about 201.1430299676.

The spelling of 8137949 in words is "eight million, one hundred thirty-seven thousand, nine hundred forty-nine".