84691242 has 24 divisors (see below), whose sum is σ = 186014244. Its totient is φ = 27843264.

The previous prime is 84691237. The next prime is 84691247. The reversal of 84691242 is 24219648.

It is an interprime number because it is at equal distance from previous prime (84691237) and next prime (84691247).

It can be written as a sum of positive squares in 2 ways, for example, as 75012921 + 9678321 = 8661^2 + 3111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84691197 and 84691206.

It is not an unprimeable number, because it can be changed into a prime (84691247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30913 + ... + 33540.

Almost surely, 2^84691242 is an apocalyptic number.

84691242 is an abundant number, since it is smaller than the sum of its proper divisors (101323002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84691242 is a wasteful number, since it uses less digits than its factorization.

84691242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64534 (or 64531 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 84691242 is about 9202.7844699308. The cubic root of 84691242 is about 439.1499462701.

The spelling of 84691242 in words is "eighty-four million, six hundred ninety-one thousand, two hundred forty-two".