98777740 has 12 divisors (see below), whose sum is σ = 207433296. Its totient is φ = 39511088.

The previous prime is 98777681. The next prime is 98777771. The reversal of 98777740 is 4777789.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2469424 + ... + 2469463.

It is an arithmetic number, because the mean of its divisors is an integer number (17286108).

Almost surely, 2^98777740 is an apocalyptic number.

It is an amenable number.

98777740 is an abundant number, since it is smaller than the sum of its proper divisors (108655556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98777740 is a wasteful number, since it uses less digits than its factorization.

98777740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938896 (or 4938894 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 49.

The square root of 98777740 is about 9938.6991100445. The cubic root of 98777740 is about 462.2600498692.

Adding to 98777740 its sum of digits (49), we get a palindrome (98777789).

The spelling of 98777740 in words is "ninety-eight million, seven hundred seventy-seven thousand, seven hundred forty".