78400483 has 8 divisors (see below), whose sum is σ = 89837568. Its totient is φ = 67022664.

The previous prime is 78400477. The next prime is 78400489. The reversal of 78400483 is 38400487.

It is an interprime number because it is at equal distance from previous prime (78400477) and next prime (78400489).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78400483 is a prime.

It is a super-2 number, since 2×78400483² = 12293271469266578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78400489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11941 + ... + 17302.

It is an arithmetic number, because the mean of its divisors is an integer number (11229696).

Almost surely, 2^78400483 is an apocalyptic number.

78400483 is a deficient number, since it is larger than the sum of its proper divisors (11437085).

78400483 is a wasteful number, since it uses less digits than its factorization.

78400483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29633.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 78400483 is about 8854.4047230743. The cubic root of 78400483 is about 427.9958711425.

The spelling of 78400483 in words is "seventy-eight million, four hundred thousand, four hundred eighty-three".