78353098 has 4 divisors (see below), whose sum is σ = 117529650. Its totient is φ = 39176548.

The previous prime is 78353071. The next prime is 78353117. The reversal of 78353098 is 89035387.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 78198649 + 154449 = 8843^2 + 393^2 .

It is a super-2 number, since 2×78353098² = 12278415932395208, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 19588273 + ... + 19588276.

Almost surely, 2^78353098 is an apocalyptic number.

78353098 is a deficient number, since it is larger than the sum of its proper divisors (39176552).

78353098 is a wasteful number, since it uses less digits than its factorization.

78353098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39176551.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 78353098 is about 8851.7285317615. The cubic root of 78353098 is about 427.9096273219.

The spelling of 78353098 in words is "seventy-eight million, three hundred fifty-three thousand, ninety-eight".