78270760 has 16 divisors (see below), whose sum is σ = 176109300. Its totient is φ = 31308288.

The previous prime is 78270749. The next prime is 78270767. The reversal of 78270760 is 6707287.

It can be written as a sum of positive squares in 2 ways, for example, as 78251716 + 19044 = 8846^2 + 138^2 .

It is a super-2 number, since 2×78270760² = 12252623741955200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78270767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978345 + ... + 978424.

Almost surely, 2^78270760 is an apocalyptic number.

It is an amenable number.

78270760 is an abundant number, since it is smaller than the sum of its proper divisors (97838540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78270760 is a wasteful number, since it uses less digits than its factorization.

78270760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956780 (or 1956776 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 78270760 is about 8847.0763532367. The cubic root of 78270760 is about 427.7596839982.

The spelling of 78270760 in words is "seventy-eight million, two hundred seventy thousand, seven hundred sixty".