78570481 has 8 divisors (see below), whose sum is σ = 90755424. Its totient is φ = 67225920.

The previous prime is 78570469. The next prime is 78570509. The reversal of 78570481 is 18407587.

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 78570481 - 2⁵ = 78570449 is a prime.

It is a super-2 number, since 2×78570481² = 12346640969142722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78570451) 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, 209895 + ... + 210268.

It is an arithmetic number, because the mean of its divisors is an integer number (11344428).

Almost surely, 2^78570481 is an apocalyptic number.

It is an amenable number.

78570481 is a deficient number, since it is larger than the sum of its proper divisors (12184943).

78570481 is a wasteful number, since it uses less digits than its factorization.

78570481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420191.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 78570481 is about 8863.9991538808. Note that the first 3 decimals coincide. The cubic root of 78570481 is about 428.3049930361.

The spelling of 78570481 in words is "seventy-eight million, five hundred seventy thousand, four hundred eighty-one".