78463100 has 36 divisors (see below), whose sum is σ = 171879624. Its totient is φ = 31087680.

The previous prime is 78463081. The next prime is 78463111. The reversal of 78463100 is 136487.

It is a super-2 number, since 2×78463100² = 12312916123220000, 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 11 ways as a sum of consecutive naturals, for example, 7034 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (4774434).

Almost surely, 2^78463100 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 78463100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85939812).

78463100 is an abundant number, since it is smaller than the sum of its proper divisors (93416524).

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

78463100 is a wasteful number, since it uses less digits than its factorization.

78463100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454 (or 7447 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 78463100 is about 8857.9399410924. The cubic root of 78463100 is about 428.1097849211.

Adding to 78463100 its reverse (136487), we get a palindrome (78599587).

The spelling of 78463100 in words is "seventy-eight million, four hundred sixty-three thousand, one hundred".