7429749 has 4 divisors (see below), whose sum is σ = 9906336. Its totient is φ = 4953164.

The previous prime is 7429729. The next prime is 7429757. The reversal of 7429749 is 9479247.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9479247 = 3 ⋅3159749.

It is a cyclic number.

It is not a de Polignac number, because 7429749 - 2¹¹ = 7427701 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7429749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7429729) 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, 1238289 + ... + 1238294.

It is an arithmetic number, because the mean of its divisors is an integer number (2476584).

Almost surely, 2^7429749 is an apocalyptic number.

It is an amenable number.

7429749 is a deficient number, since it is larger than the sum of its proper divisors (2476587).

7429749 is a wasteful number, since it uses less digits than its factorization.

7429749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476586.

The product of its digits is 127008, while the sum is 42.

The square root of 7429749 is about 2725.7565922144. The cubic root of 7429749 is about 195.1303008151.

The spelling of 7429749 in words is "seven million, four hundred twenty-nine thousand, seven hundred forty-nine".