76284445 has 24 divisors (see below), whose sum is σ = 96832512. Its totient is φ = 57684000.

The previous prime is 76284427. The next prime is 76284479. The reversal of 76284445 is 54448267.

It is a happy number.

It is not a de Polignac number, because 76284445 - 2¹⁷ = 76153373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76284398 and 76284407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 399300 + ... + 399490.

It is an arithmetic number, because the mean of its divisors is an integer number (4034688).

Almost surely, 2^76284445 is an apocalyptic number.

It is an amenable number.

76284445 is a deficient number, since it is larger than the sum of its proper divisors (20548067).

76284445 is a wasteful number, since it uses less digits than its factorization.

76284445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 370 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 76284445 is about 8734.0966905571. The cubic root of 76284445 is about 424.1101473801.

It can be divided in two parts, 76284 and 445, that added together give a square (76729 = 277²).

The spelling of 76284445 in words is "seventy-six million, two hundred eighty-four thousand, four hundred forty-five".