49890657 has 8 divisors (see below), whose sum is σ = 69413184. Its totient is φ = 31814288.

The previous prime is 49890647. The next prime is 49890661. The reversal of 49890657 is 75609894.

49890657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49890657 - 2¹¹ = 49888609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49890647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361458 + ... + 361595.

It is an arithmetic number, because the mean of its divisors is an integer number (8676648).

Almost surely, 2^49890657 is an apocalyptic number.

It is an amenable number.

49890657 is a deficient number, since it is larger than the sum of its proper divisors (19522527).

49890657 is a wasteful number, since it uses less digits than its factorization.

49890657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723079.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 49890657 is about 7063.3318625136. The cubic root of 49890657 is about 368.1344051623.

The spelling of 49890657 in words is "forty-nine million, eight hundred ninety thousand, six hundred fifty-seven".