84503945 has 4 divisors (see below), whose sum is σ = 101404740. Its totient is φ = 67603152.

The previous prime is 84503917. The next prime is 84503953. The reversal of 84503945 is 54930548.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9369721 + 75134224 = 3061^2 + 8668^2 .

It is a cyclic number.

It is not a de Polignac number, because 84503945 - 2⁸ = 84503689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84503899 and 84503908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8450390 + ... + 8450399.

It is an arithmetic number, because the mean of its divisors is an integer number (25351185).

Almost surely, 2^84503945 is an apocalyptic number.

It is an amenable number.

84503945 is a deficient number, since it is larger than the sum of its proper divisors (16900795).

84503945 is a wasteful number, since it uses less digits than its factorization.

84503945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16900794.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 84503945 is about 9192.6027326324. The cubic root of 84503945 is about 438.8259766209.

The spelling of 84503945 in words is "eighty-four million, five hundred three thousand, nine hundred forty-five".