98777872 has 20 divisors (see below), whose sum is σ = 191935260. Its totient is φ = 49246208.

The previous prime is 98777869. The next prime is 98777881. The reversal of 98777872 is 27877789.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 86415616 = 3516^2 + 9296^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3097 + ... + 14392.

It is an arithmetic number, because the mean of its divisors is an integer number (9596763).

Almost surely, 2^98777872 is an apocalyptic number.

It is an amenable number.

98777872 is a deficient number, since it is larger than the sum of its proper divisors (93157388).

98777872 is a wasteful number, since it uses less digits than its factorization.

98777872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17850 (or 17844 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 55.

The square root of 98777872 is about 9938.7057507504. The cubic root of 98777872 is about 462.2602557803.

It can be divided in two parts, 9877787 and 2, that added together give a palindrome (9877789).

The spelling of 98777872 in words is "ninety-eight million, seven hundred seventy-seven thousand, eight hundred seventy-two".