67489137 has 12 divisors (see below), whose sum is σ = 98348484. Its totient is φ = 44593920.

The previous prime is 67489129. The next prime is 67489181. The reversal of 67489137 is 73198476.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 64786401 = 1644^2 + 8049^2 .

It is not a de Polignac number, because 67489137 - 2³ = 67489129 is a prime.

It is a super-2 number, since 2×67489137² = 9109567226009538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67489092 and 67489101.

It is not an unprimeable number, because it can be changed into a prime (67489187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32164 + ... + 34197.

It is an arithmetic number, because the mean of its divisors is an integer number (8195707).

Almost surely, 2^67489137 is an apocalyptic number.

It is an amenable number.

67489137 is a deficient number, since it is larger than the sum of its proper divisors (30859347).

67489137 is a wasteful number, since it uses less digits than its factorization.

67489137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66480 (or 66477 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 67489137 is about 8215.1772348501. The cubic root of 67489137 is about 407.1407993037.

The spelling of 67489137 in words is "sixty-seven million, four hundred eighty-nine thousand, one hundred thirty-seven".