78900463 has 2 divisors, whose sum is σ = 78900464. Its totient is φ = 78900462.

The previous prime is 78900461. The next prime is 78900467. The reversal of 78900463 is 36400987.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78900463 - 2¹ = 78900461 is a prime.

It is a super-2 number, since 2×78900463² = 12450566123228738, which contains 22 as substring.

Together with 78900461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78900461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39450231 + 39450232.

It is an arithmetic number, because the mean of its divisors is an integer number (39450232).

Almost surely, 2^78900463 is an apocalyptic number.

78900463 is a deficient number, since it is larger than the sum of its proper divisors (1).

78900463 is an equidigital number, since it uses as much as digits as its factorization.

78900463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 78900463 is about 8882.5932587280. The cubic root of 78900463 is about 428.9037570972.

The spelling of 78900463 in words is "seventy-eight million, nine hundred thousand, four hundred sixty-three".