49747381 has 4 divisors (see below), whose sum is σ = 50127264. Its totient is φ = 49367500.

The previous prime is 49747349. The next prime is 49747387. The reversal of 49747381 is 18374794.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18374794 = 2 ⋅9187397.

It is a cyclic number.

It is not a de Polignac number, because 49747381 - 2⁵ = 49747349 is a prime.

It is a super-2 number, since 2×49747381² = 4949603832718322, 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 (49747387) 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, 189745 + ... + 190006.

It is an arithmetic number, because the mean of its divisors is an integer number (12531816).

Almost surely, 2^49747381 is an apocalyptic number.

It is an amenable number.

49747381 is a deficient number, since it is larger than the sum of its proper divisors (379883).

49747381 is a wasteful number, since it uses less digits than its factorization.

49747381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379882.

The product of its digits is 169344, while the sum is 43.

The square root of 49747381 is about 7053.1823314019. The cubic root of 49747381 is about 367.7816644570.

The spelling of 49747381 in words is "forty-nine million, seven hundred forty-seven thousand, three hundred eighty-one".