49589987 has 4 divisors (see below), whose sum is σ = 51189696. Its totient is φ = 47990280.

The previous prime is 49589929. The next prime is 49589993. The reversal of 49589987 is 78998594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78998594 = 2 ⋅39499297.

It is a cyclic number.

It is not a de Polignac number, because 49589987 - 2⁶ = 49589923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49549987) 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, 799808 + ... + 799869.

It is an arithmetic number, because the mean of its divisors is an integer number (12797424).

Almost surely, 2^49589987 is an apocalyptic number.

49589987 is a deficient number, since it is larger than the sum of its proper divisors (1599709).

49589987 is a wasteful number, since it uses less digits than its factorization.

49589987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599708.

The product of its digits is 6531840, while the sum is 59.

The square root of 49589987 is about 7042.0158335522. The cubic root of 49589987 is about 367.3933841619.

The spelling of 49589987 in words is "forty-nine million, five hundred eighty-nine thousand, nine hundred eighty-seven".