874999997 has 2 divisors, whose sum is σ = 874999998. Its totient is φ = 874999996.

The previous prime is 874999969. The next prime is 875000033. The reversal of 874999997 is 799999478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 870781081 + 4218916 = 29509^2 + 2054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874999997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 874999997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (874999597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437499998 + 437499999.

It is an arithmetic number, because the mean of its divisors is an integer number (437499999).

Almost surely, 2^874999997 is an apocalyptic number.

It is an amenable number.

874999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

874999997 is an equidigital number, since it uses as much as digits as its factorization.

874999997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92588832, while the sum is 71.

The square root of 874999997 is about 29580.3988647888. The cubic root of 874999997 is about 956.4655902931.

The spelling of 874999997 in words is "eight hundred seventy-four million, nine hundred ninety-nine thousand, nine hundred ninety-seven".