98412661 has 2 divisors, whose sum is σ = 98412662. Its totient is φ = 98412660.

The previous prime is 98412659. The next prime is 98412667. The reversal of 98412661 is 16621489.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61324561 + 37088100 = 7831^2 + 6090^2 .

It is a cyclic number.

It is not a de Polignac number, because 98412661 - 2¹ = 98412659 is a prime.

Together with 98412659, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 98412661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98412667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49206330 + 49206331.

It is an arithmetic number, because the mean of its divisors is an integer number (49206331).

Almost surely, 2^98412661 is an apocalyptic number.

98412661 is the 4437-th centered decagonal number.

It is an amenable number.

98412661 is a deficient number, since it is larger than the sum of its proper divisors (1).

98412661 is an equidigital number, since it uses as much as digits as its factorization.

98412661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 98412661 is about 9920.3155695774. The cubic root of 98412661 is about 461.6898479297.

The spelling of 98412661 in words is "ninety-eight million, four hundred twelve thousand, six hundred sixty-one".