84276645 has 16 divisors (see below), whose sum is σ = 136743552. Its totient is φ = 44313920.

The previous prime is 84276637. The next prime is 84276653. The reversal of 84276645 is 54667248.

It is an interprime number because it is at equal distance from previous prime (84276637) and next prime (84276653).

It is not a de Polignac number, because 84276645 - 2³ = 84276637 is a prime.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 84276597 and 84276606.

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, 38502 + ... + 40631.

It is an arithmetic number, because the mean of its divisors is an integer number (8546472).

Almost surely, 2^84276645 is an apocalyptic number.

It is an amenable number.

84276645 is a deficient number, since it is larger than the sum of its proper divisors (52466907).

84276645 is a wasteful number, since it uses less digits than its factorization.

84276645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79212.

The product of its digits is 322560, while the sum is 42.

The square root of 84276645 is about 9180.2312062388. The cubic root of 84276645 is about 438.4321697188.

The spelling of 84276645 in words is "eighty-four million, two hundred seventy-six thousand, six hundred forty-five".