78336493 has 8 divisors (see below), whose sum is σ = 83341440. Its totient is φ = 73375680.

The previous prime is 78336469. The next prime is 78336499. The reversal of 78336493 is 39463387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78336493 - 2¹³ = 78328301 is a prime.

It is a super-2 number, since 2×78336493² = 12273212271078098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78336499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7333 + ... + 14506.

It is an arithmetic number, because the mean of its divisors is an integer number (10417680).

Almost surely, 2^78336493 is an apocalyptic number.

It is an amenable number.

78336493 is a deficient number, since it is larger than the sum of its proper divisors (5004947).

78336493 is a wasteful number, since it uses less digits than its factorization.

78336493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22067.

The product of its digits is 326592, while the sum is 43.

The square root of 78336493 is about 8850.7905296646. The cubic root of 78336493 is about 427.8793969012.

The spelling of 78336493 in words is "seventy-eight million, three hundred thirty-six thousand, four hundred ninety-three".