672547437 has 6 divisors (see below), whose sum is σ = 971457422. Its totient is φ = 448364952.

The previous prime is 672547417. The next prime is 672547441. The reversal of 672547437 is 734745276.

672547437 is a `hidden beast` number, since 6 + 72 + 547 + 4 + 37 = 666.

It can be written as a sum of positive squares in only one way, i.e., 614345796 + 58201641 = 24786^2 + 7629^2 .

It is not a de Polignac number, because 672547437 - 2¹¹ = 672545389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 672547392 and 672547401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672547417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37363738 + ... + 37363755.

Almost surely, 2^672547437 is an apocalyptic number.

It is an amenable number.

672547437 is a deficient number, since it is larger than the sum of its proper divisors (298909985).

672547437 is a wasteful number, since it uses less digits than its factorization.

672547437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74727499 (or 74727496 counting only the distinct ones).

The product of its digits is 987840, while the sum is 45.

The square root of 672547437 is about 25933.5195644556. The cubic root of 672547437 is about 876.1416117156.

It can be divided in two parts, 67254 and 7437, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 672547437 in words is "six hundred seventy-two million, five hundred forty-seven thousand, four hundred thirty-seven".