84723537 has 4 divisors (see below), whose sum is σ = 112964720. Its totient is φ = 56482356.

The previous prime is 84723517. The next prime is 84723557. The reversal of 84723537 is 73532748.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (84723517) and next prime (84723557).

It is not a de Polignac number, because 84723537 - 2⁶ = 84723473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84723495 and 84723504.

It is not an unprimeable number, because it can be changed into a prime (84723517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14120587 + ... + 14120592.

It is an arithmetic number, because the mean of its divisors is an integer number (28241180).

Almost surely, 2^84723537 is an apocalyptic number.

It is an amenable number.

84723537 is a deficient number, since it is larger than the sum of its proper divisors (28241183).

84723537 is a wasteful number, since it uses less digits than its factorization.

84723537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28241182.

The product of its digits is 141120, while the sum is 39.

The square root of 84723537 is about 9204.5389346778. The cubic root of 84723537 is about 439.2057589880.

The spelling of 84723537 in words is "eighty-four million, seven hundred twenty-three thousand, five hundred thirty-seven".