98978461 has 2 divisors, whose sum is σ = 98978462. Its totient is φ = 98978460.

The previous prime is 98978423. The next prime is 98978483. The reversal of 98978461 is 16487989.

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., 73788100 + 25190361 = 8590^2 + 5019^2 .

It is a cyclic number.

It is not a de Polignac number, because 98978461 - 2¹¹ = 98976413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98978399 and 98978408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98978861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49489230 + 49489231.

It is an arithmetic number, because the mean of its divisors is an integer number (49489231).

Almost surely, 2^98978461 is an apocalyptic number.

It is an amenable number.

98978461 is a deficient number, since it is larger than the sum of its proper divisors (1).

98978461 is an equidigital number, since it uses as much as digits as its factorization.

98978461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 98978461 is about 9948.7919367127. The cubic root of 98978461 is about 462.5729493892.

The spelling of 98978461 in words is "ninety-eight million, nine hundred seventy-eight thousand, four hundred sixty-one".