98861057 has 2 divisors, whose sum is σ = 98861058. Its totient is φ = 98861056.

The previous prime is 98860973. The next prime is 98861083. The reversal of 98861057 is 75016889.

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., 76667536 + 22193521 = 8756^2 + 4711^2 .

It is a cyclic number.

It is not a de Polignac number, because 98861057 - 2¹⁰ = 98860033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98860999 and 98861017.

It is not a weakly prime, because it can be changed into another prime (98861557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49430528 + 49430529.

It is an arithmetic number, because the mean of its divisors is an integer number (49430529).

It is a Proth number, since it is equal to 3017 ⋅ 2¹⁵ + 1 and 3017 < 2¹⁵.

Almost surely, 2^98861057 is an apocalyptic number.

It is an amenable number.

98861057 is a deficient number, since it is larger than the sum of its proper divisors (1).

98861057 is an equidigital number, since it uses as much as digits as its factorization.

98861057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 98861057 is about 9942.8897710877. The cubic root of 98861057 is about 462.3899823048.

The spelling of 98861057 in words is "ninety-eight million, eight hundred sixty-one thousand, fifty-seven".