49690087 has 2 divisors, whose sum is σ = 49690088. Its totient is φ = 49690086.

The previous prime is 49690057. The next prime is 49690129. The reversal of 49690087 is 78009694.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49690087 - 2¹¹ = 49688039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49690057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24845043 + 24845044.

It is an arithmetic number, because the mean of its divisors is an integer number (24845044).

Almost surely, 2^49690087 is an apocalyptic number.

49690087 is a deficient number, since it is larger than the sum of its proper divisors (1).

49690087 is an equidigital number, since it uses as much as digits as its factorization.

49690087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 49690087 is about 7049.1195904169. The cubic root of 49690087 is about 367.6404189827.

The spelling of 49690087 in words is "forty-nine million, six hundred ninety thousand, eighty-seven".