78495000 has 80 divisors (see below), whose sum is σ = 245265240. Its totient is φ = 20928000.

The previous prime is 78494987. The next prime is 78495031. The reversal of 78495000 is 59487.

It is a super-2 number, since 2×78495000² = 12322930050000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12384 + ... + 17616.

Almost surely, 2^78495000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78495000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122632620).

78495000 is an abundant number, since it is smaller than the sum of its proper divisors (166770240).

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

78495000 is a wasteful number, since it uses less digits than its factorization.

78495000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 78495000 is about 8859.7404025174. The cubic root of 78495000 is about 428.1677945749.

The spelling of 78495000 in words is "seventy-eight million, four hundred ninety-five thousand".