84690773 has 4 divisors (see below), whose sum is σ = 84735180. Its totient is φ = 84646368.

The previous prime is 84690751. The next prime is 84690803. The reversal of 84690773 is 37709648.

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 24581764 + 60109009 = 4958^2 + 7753^2 .

It is a cyclic number.

It is not a de Polignac number, because 84690773 - 2¹⁶ = 84625237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84690703) 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, 19208 + ... + 23201.

It is an arithmetic number, because the mean of its divisors is an integer number (21183795).

Almost surely, 2^84690773 is an apocalyptic number.

It is an amenable number.

84690773 is a deficient number, since it is larger than the sum of its proper divisors (44407).

84690773 is a wasteful number, since it uses less digits than its factorization.

84690773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44406.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 84690773 is about 9202.7589884773. The cubic root of 84690773 is about 439.1491356325.

It can be divided in two parts, 846 and 90773, that added together give a palindrome (91619).

The spelling of 84690773 in words is "eighty-four million, six hundred ninety thousand, seven hundred seventy-three".