7538429 has 4 divisors (see below), whose sum is σ = 7981884. Its totient is φ = 7094976.

The previous prime is 7538423. The next prime is 7538449. The reversal of 7538429 is 9248357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9248357 = 17 ⋅544021.

It can be written as a sum of positive squares in 2 ways, for example, as 4305625 + 3232804 = 2075^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 7538429 - 2¹⁶ = 7472893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7538392 and 7538401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7538423) 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, 221702 + ... + 221735.

It is an arithmetic number, because the mean of its divisors is an integer number (1995471).

Almost surely, 2^7538429 is an apocalyptic number.

It is an amenable number.

7538429 is a deficient number, since it is larger than the sum of its proper divisors (443455).

7538429 is a wasteful number, since it uses less digits than its factorization.

7538429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443454.

The product of its digits is 60480, while the sum is 38.

The square root of 7538429 is about 2745.6199664192. The cubic root of 7538429 is about 196.0771336698.

The spelling of 7538429 in words is "seven million, five hundred thirty-eight thousand, four hundred twenty-nine".