7645434 has 16 divisors (see below), whose sum is σ = 15664320. Its totient is φ = 2486240.

The previous prime is 7645433. The next prime is 7645447. The reversal of 7645434 is 4345467.

It is a happy number.

It is a super-2 number, since 2×7645434² = 116905322096712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7645395 and 7645404.

It is not an unprimeable number, because it can be changed into a prime (7645433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15294 + ... + 15785.

It is an arithmetic number, because the mean of its divisors is an integer number (979020).

Almost surely, 2^7645434 is an apocalyptic number.

7645434 is an abundant number, since it is smaller than the sum of its proper divisors (8018886).

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

7645434 is a wasteful number, since it uses less digits than its factorization.

7645434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31125.

The product of its digits is 40320, while the sum is 33.

The square root of 7645434 is about 2765.0377935934. The cubic root of 7645434 is about 197.0005239321. Note that the first 3 decimals are identical.

Adding to 7645434 its sum of digits (33), we get a palindrome (7645467).

The spelling of 7645434 in words is "seven million, six hundred forty-five thousand, four hundred thirty-four".