78498996 has 48 divisors (see below), whose sum is σ = 195987456. Its totient is φ = 24367104.

The previous prime is 78498971. The next prime is 78499021. The reversal of 78498996 is 69989487.

It is an interprime number because it is at equal distance from previous prime (78498971) and next prime (78499021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17805 + ... + 21771.

It is an arithmetic number, because the mean of its divisors is an integer number (4083072).

Almost surely, 2^78498996 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 78498996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97993728).

78498996 is an abundant number, since it is smaller than the sum of its proper divisors (117488460).

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

78498996 is a wasteful number, since it uses less digits than its factorization.

78498996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088 (or 4086 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 78498996 is about 8859.9659141557. The cubic root of 78498996 is about 428.1750601310.

The spelling of 78498996 in words is "seventy-eight million, four hundred ninety-eight thousand, nine hundred ninety-six".