78352486 has 4 divisors (see below), whose sum is σ = 117528732. Its totient is φ = 39176242.

The previous prime is 78352471. The next prime is 78352501. The reversal of 78352486 is 68425387.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78352471) and next prime (78352501).

It is a super-2 number, since 2×78352486² = 12278224124760392, 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 as a sum of consecutive naturals, namely, 19588120 + ... + 19588123.

It is an arithmetic number, because the mean of its divisors is an integer number (29382183).

Almost surely, 2^78352486 is an apocalyptic number.

78352486 is a deficient number, since it is larger than the sum of its proper divisors (39176246).

78352486 is a wasteful number, since it uses less digits than its factorization.

78352486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39176245.

The product of its digits is 322560, while the sum is 43.

The square root of 78352486 is about 8851.6939621747. The cubic root of 78352486 is about 427.9085132142.

The spelling of 78352486 in words is "seventy-eight million, three hundred fifty-two thousand, four hundred eighty-six".