80494864 has 20 divisors (see below), whose sum is σ = 165133404. Its totient is φ = 37879808.

The previous prime is 80494861. The next prime is 80494867. The reversal of 80494864 is 46849408.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80494861) and next prime (80494867).

It can be written as a sum of positive squares in 2 ways, for example, as 75690000 + 4804864 = 8700^2 + 2192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80494864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80494861) 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, 147697 + ... + 148240.

It is the magic constant of a 544 × 544 magic square.

Almost surely, 2^80494864 is an apocalyptic number.

It is an amenable number.

80494864 is an abundant number, since it is smaller than the sum of its proper divisors (84638540).

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

80494864 is a wasteful number, since it uses less digits than its factorization.

80494864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295962 (or 295956 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 80494864 is about 8971.8929998078. The cubic root of 80494864 is about 431.7735724709.

The spelling of 80494864 in words is "eighty million, four hundred ninety-four thousand, eight hundred sixty-four".