98951569 has 2 divisors, whose sum is σ = 98951570. Its totient is φ = 98951568.

The previous prime is 98951549. The next prime is 98951599. The reversal of 98951569 is 96515989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68558400 + 30393169 = 8280^2 + 5513^2 .

It is a cyclic number.

It is not a de Polignac number, because 98951569 - 2¹⁷ = 98820497 is a prime.

It is a super-2 number, since 2×98951569² = 19582826015123522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98951549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49475784 + 49475785.

It is an arithmetic number, because the mean of its divisors is an integer number (49475785).

Almost surely, 2^98951569 is an apocalyptic number.

It is an amenable number.

98951569 is a deficient number, since it is larger than the sum of its proper divisors (1).

98951569 is an equidigital number, since it uses as much as digits as its factorization.

98951569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 52.

The square root of 98951569 is about 9947.4403240231. The cubic root of 98951569 is about 462.5310526022.

The spelling of 98951569 in words is "ninety-eight million, nine hundred fifty-one thousand, five hundred sixty-nine".