49845997 has 2 divisors, whose sum is σ = 49845998. Its totient is φ = 49845996.

The previous prime is 49845947. The next prime is 49846001. The reversal of 49845997 is 79954894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44342281 + 5503716 = 6659^2 + 2346^2 .

It is a cyclic number.

It is not a de Polignac number, because 49845997 - 2⁷ = 49845869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49845937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24922998 + 24922999.

It is an arithmetic number, because the mean of its divisors is an integer number (24922999).

Almost surely, 2^49845997 is an apocalyptic number.

It is an amenable number.

49845997 is a deficient number, since it is larger than the sum of its proper divisors (1).

49845997 is an equidigital number, since it uses as much as digits as its factorization.

49845997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 55.

The square root of 49845997 is about 7060.1697571659. The cubic root of 49845997 is about 368.0245262678.

It can be divided in two parts, 49845 and 997, that multiplied together give a triangular number (49695465 = T₉₉₆₉).

The spelling of 49845997 in words is "forty-nine million, eight hundred forty-five thousand, nine hundred ninety-seven".