78346481 has 8 divisors (see below), whose sum is σ = 82905600. Its totient is φ = 73830960.

The previous prime is 78346399. The next prime is 78346507. The reversal of 78346481 is 18464387.

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

It is not a de Polignac number, because 78346481 - 2¹⁰ = 78345457 is a prime.

It is a super-2 number, since 2×78346481² = 12276342170166722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78346181) 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, 7166 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (10363200).

Almost surely, 2^78346481 is an apocalyptic number.

It is an amenable number.

78346481 is a deficient number, since it is larger than the sum of its proper divisors (4559119).

78346481 is a wasteful number, since it uses less digits than its factorization.

78346481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21799.

The product of its digits is 129024, while the sum is 41.

The square root of 78346481 is about 8851.3547550643. The cubic root of 78346481 is about 427.8975811796.

The spelling of 78346481 in words is "seventy-eight million, three hundred forty-six thousand, four hundred eighty-one".