49097831 has 4 divisors (see below), whose sum is σ = 50681664. Its totient is φ = 47514000.

The previous prime is 49097821. The next prime is 49097837. The reversal of 49097831 is 13879094.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49097831 is a prime.

It is a super-2 number, since 2×49097831² = 4821194017809122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49097837) 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, 791870 + ... + 791931.

It is an arithmetic number, because the mean of its divisors is an integer number (12670416).

Almost surely, 2^49097831 is an apocalyptic number.

49097831 is a deficient number, since it is larger than the sum of its proper divisors (1583833).

49097831 is a wasteful number, since it uses less digits than its factorization.

49097831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583832.

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

The square root of 49097831 is about 7006.9844441100. The cubic root of 49097831 is about 366.1739421248.

The spelling of 49097831 in words is "forty-nine million, ninety-seven thousand, eight hundred thirty-one".