49807897 has 2 divisors, whose sum is σ = 49807898. Its totient is φ = 49807896.

The previous prime is 49807853. The next prime is 49807913. The reversal of 49807897 is 79870894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45981961 + 3825936 = 6781^2 + 1956^2 .

It is a cyclic number.

It is not a de Polignac number, because 49807897 - 2¹⁵ = 49775129 is a prime.

It is not a weakly prime, because it can be changed into another prime (49807817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24903948 + 24903949.

It is an arithmetic number, because the mean of its divisors is an integer number (24903949).

Almost surely, 2^49807897 is an apocalyptic number.

It is an amenable number.

49807897 is a deficient number, since it is larger than the sum of its proper divisors (1).

49807897 is an equidigital number, since it uses as much as digits as its factorization.

49807897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 49807897 is about 7057.4710059624. The cubic root of 49807897 is about 367.9307353295.

The spelling of 49807897 in words is "forty-nine million, eight hundred seven thousand, eight hundred ninety-seven".