650397437 has 4 divisors (see below), whose sum is σ = 651106080. Its totient is φ = 649688796.

The previous prime is 650397401. The next prime is 650397469. The reversal of 650397437 is 734793056.

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.

It is a cyclic number.

It is not a de Polignac number, because 650397437 - 2¹⁰ = 650396413 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 (650397487) 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, 352943 + ... + 354780.

It is an arithmetic number, because the mean of its divisors is an integer number (162776520).

Almost surely, 2^650397437 is an apocalyptic number.

It is an amenable number.

650397437 is a deficient number, since it is larger than the sum of its proper divisors (708643).

650397437 is an equidigital number, since it uses as much as digits as its factorization.

650397437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708642.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 650397437 is about 25502.8907577161. The cubic root of 650397437 is about 866.4156208932.

The spelling of 650397437 in words is "six hundred fifty million, three hundred ninety-seven thousand, four hundred thirty-seven".