7942453 has 4 divisors (see below), whose sum is σ = 8005120. Its totient is φ = 7879788.

The previous prime is 7942447. The next prime is 7942469. The reversal of 7942453 is 3542497.

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: 3542497 = 7 ⋅506071.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7942453 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 (7948453) 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, 31143 + ... + 31396.

It is an arithmetic number, because the mean of its divisors is an integer number (2001280).

Almost surely, 2^7942453 is an apocalyptic number.

It is an amenable number.

7942453 is a deficient number, since it is larger than the sum of its proper divisors (62667).

7942453 is a wasteful number, since it uses less digits than its factorization.

7942453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62666.

The product of its digits is 30240, while the sum is 34.

The square root of 7942453 is about 2818.2357956708. The cubic root of 7942453 is about 199.5192871682.

The spelling of 7942453 in words is "seven million, nine hundred forty-two thousand, four hundred fifty-three".