49178387 has 2 divisors, whose sum is σ = 49178388. Its totient is φ = 49178386.

The previous prime is 49178359. The next prime is 49178401. The reversal of 49178387 is 78387194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49178387 - 2⁶ = 49178323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49178687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24589193 + 24589194.

It is an arithmetic number, because the mean of its divisors is an integer number (24589194).

Almost surely, 2^49178387 is an apocalyptic number.

49178387 is a deficient number, since it is larger than the sum of its proper divisors (1).

49178387 is an equidigital number, since it uses as much as digits as its factorization.

49178387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 47.

The square root of 49178387 is about 7012.7303527228. The cubic root of 49178387 is about 366.3740961828.

The spelling of 49178387 in words is "forty-nine million, one hundred seventy-eight thousand, three hundred eighty-seven".