78354706 has 8 divisors (see below), whose sum is σ = 117571644. Its totient is φ = 39164160.

The previous prime is 78354671. The next prime is 78354733. The reversal of 78354706 is 60745387.

It can be written as a sum of positive squares in 2 ways, for example, as 75082225 + 3272481 = 8665^2 + 1809^2 .

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

It is a super-2 number, since 2×78354706² = 12278919904692872, which contains 22 as substring.

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, 4686 + ... + 13366.

Almost surely, 2^78354706 is an apocalyptic number.

78354706 is a deficient number, since it is larger than the sum of its proper divisors (39216938).

78354706 is a wasteful number, since it uses less digits than its factorization.

78354706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13196.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 78354706 is about 8851.8193610127. The cubic root of 78354706 is about 427.9125545577.

The spelling of 78354706 in words is "seventy-eight million, three hundred fifty-four thousand, seven hundred six".