49077831 has 16 divisors (see below), whose sum is σ = 73848960. Its totient is φ = 28717920.

The previous prime is 49077811. The next prime is 49077857. The reversal of 49077831 is 13877094.

It is not a de Polignac number, because 49077831 - 2¹³ = 49069639 is a prime.

It is a super-2 number, since 2×49077831² = 4817266991329122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49077831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49077811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24685 + ... + 26598.

It is an arithmetic number, because the mean of its divisors is an integer number (4615560).

Almost surely, 2^49077831 is an apocalyptic number.

49077831 is a deficient number, since it is larger than the sum of its proper divisors (24771129).

49077831 is a wasteful number, since it uses less digits than its factorization.

49077831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51326.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 49077831 is about 7005.5571512907. The cubic root of 49077831 is about 366.1242150572.

The spelling of 49077831 in words is "forty-nine million, seventy-seven thousand, eight hundred thirty-one".