99781348 has 6 divisors (see below), whose sum is σ = 174617366. Its totient is φ = 49890672.

The previous prime is 99781321. The next prime is 99781349. The reversal of 99781348 is 84318799.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 45050944 = 7398^2 + 6712^2 .

It is not an unprimeable number, because it can be changed into a prime (99781349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12472665 + ... + 12472672.

Almost surely, 2^99781348 is an apocalyptic number.

It is an amenable number.

99781348 is a deficient number, since it is larger than the sum of its proper divisors (74836018).

99781348 is a wasteful number, since it uses less digits than its factorization.

99781348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24945341 (or 24945339 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 99781348 is about 9989.0614173705. The cubic root of 99781348 is about 463.8203389360.

The spelling of 99781348 in words is "ninety-nine million, seven hundred eighty-one thousand, three hundred forty-eight".