7940537 has 8 divisors (see below), whose sum is σ = 9118560. Its totient is φ = 6838560.

The previous prime is 7940521. The next prime is 7940539. The reversal of 7940537 is 7350497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7940537 - 2⁴ = 7940521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7940497 and 7940506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940539) 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, 18788 + ... + 19205.

It is an arithmetic number, because the mean of its divisors is an integer number (1139820).

Almost surely, 2^7940537 is an apocalyptic number.

It is an amenable number.

7940537 is a deficient number, since it is larger than the sum of its proper divisors (1178023).

7940537 is a wasteful number, since it uses less digits than its factorization.

7940537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38023.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 7940537 is about 2817.8958461945. The cubic root of 7940537 is about 199.5032421799.

The spelling of 7940537 in words is "seven million, nine hundred forty thousand, five hundred thirty-seven".