49387761 has 12 divisors (see below), whose sum is σ = 71484660. Its totient is φ = 32857440.

The previous prime is 49387759. The next prime is 49387769. The reversal of 49387761 is 16778394.

It can be written as a sum of positive squares in 2 ways, for example, as 27625536 + 21762225 = 5256^2 + 4665^2 .

It is not a de Polignac number, because 49387761 - 2¹ = 49387759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49387769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 810 + ... + 9971.

It is an arithmetic number, because the mean of its divisors is an integer number (5957055).

Almost surely, 2^49387761 is an apocalyptic number.

It is an amenable number.

49387761 is a deficient number, since it is larger than the sum of its proper divisors (22096899).

49387761 is a wasteful number, since it uses less digits than its factorization.

49387761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11296 (or 11293 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 49387761 is about 7027.6426346251. The cubic root of 49387761 is about 366.8932985522.

The spelling of 49387761 in words is "forty-nine million, three hundred eighty-seven thousand, seven hundred sixty-one".