78303682 has 4 divisors (see below), whose sum is σ = 117455526. Its totient is φ = 39151840.

The previous prime is 78303653. The next prime is 78303691. The reversal of 78303682 is 28630387.

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., 63856081 + 14447601 = 7991^2 + 3801^2 .

It is a super-2 number, since 2×78303682² = 12262933229514248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19575919 + ... + 19575922.

Almost surely, 2^78303682 is an apocalyptic number.

78303682 is a deficient number, since it is larger than the sum of its proper divisors (39151844).

78303682 is a wasteful number, since it uses less digits than its factorization.

78303682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39151843.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 78303682 is about 8848.9367722908. The cubic root of 78303682 is about 427.8196499008.

The spelling of 78303682 in words is "seventy-eight million, three hundred three thousand, six hundred eighty-two".