98779001 has 4 divisors (see below), whose sum is σ = 100132212. Its totient is φ = 97425792.

The previous prime is 98778983. The next prime is 98779013. The reversal of 98779001 is 10097789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10097789 = 13 ⋅776753.

It can be written as a sum of positive squares in 2 ways, for example, as 44903401 + 53875600 = 6701^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 98779001 - 2¹⁴ = 98762617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98779001.

It is not an unprimeable number, because it can be changed into a prime (98779091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676496 + ... + 676641.

It is an arithmetic number, because the mean of its divisors is an integer number (25033053).

Almost surely, 2^98779001 is an apocalyptic number.

It is an amenable number.

98779001 is a deficient number, since it is larger than the sum of its proper divisors (1353211).

98779001 is a wasteful number, since it uses less digits than its factorization.

98779001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353210.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 98779001 is about 9938.7625487281. The cubic root of 98779001 is about 462.2620169367.

The spelling of 98779001 in words is "ninety-eight million, seven hundred seventy-nine thousand, one".