437680073 has 4 divisors (see below), whose sum is σ = 437899728. Its totient is φ = 437460420.

The previous prime is 437680057. The next prime is 437680081. The reversal of 437680073 is 370086734.

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: 370086734 = 2 ⋅185043367.

It is a cyclic number.

It is not a de Polignac number, because 437680073 - 2⁴ = 437680057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (437683073) 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, 106811 + ... + 110832.

It is an arithmetic number, because the mean of its divisors is an integer number (109474932).

Almost surely, 2^437680073 is an apocalyptic number.

It is an amenable number.

437680073 is a deficient number, since it is larger than the sum of its proper divisors (219655).

437680073 is a wasteful number, since it uses less digits than its factorization.

437680073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219654.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 437680073 is about 20920.8047885353. The cubic root of 437680073 is about 759.2513825274.

The spelling of 437680073 in words is "four hundred thirty-seven million, six hundred eighty thousand, seventy-three".