49907091 has 32 divisors (see below), whose sum is σ = 77091840. Its totient is φ = 28456704.

The previous prime is 49907071. The next prime is 49907093. The reversal of 49907091 is 19070994.

It is not a de Polignac number, because 49907091 - 2⁹ = 49906579 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (49907093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34111 + ... + 35543.

It is an arithmetic number, because the mean of its divisors is an integer number (2409120).

Almost surely, 2^49907091 is an apocalyptic number.

49907091 is a deficient number, since it is larger than the sum of its proper divisors (27184749).

49907091 is a wasteful number, since it uses less digits than its factorization.

49907091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 49907091 is about 7064.4950987314. The cubic root of 49907091 is about 368.1748219258.

The spelling of 49907091 in words is "forty-nine million, nine hundred seven thousand, ninety-one".