67528953 has 12 divisors (see below), whose sum is σ = 97907940. Its totient is φ = 44850336.

The previous prime is 67528949. The next prime is 67528957. The reversal of 67528953 is 35982576.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (67528949) and next prime (67528957).

It can be written as a sum of positive squares in 2 ways, for example, as 41641209 + 25887744 = 6453^2 + 5088^2 .

It is not a de Polignac number, because 67528953 - 2² = 67528949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67528899 and 67528908.

It is not an unprimeable number, because it can be changed into a prime (67528957) 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, 11526 + ... + 16367.

It is an arithmetic number, because the mean of its divisors is an integer number (8158995).

Almost surely, 2^67528953 is an apocalyptic number.

It is an amenable number.

67528953 is a deficient number, since it is larger than the sum of its proper divisors (30378987).

67528953 is a wasteful number, since it uses less digits than its factorization.

67528953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28168 (or 28165 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 67528953 is about 8217.6001971378. The cubic root of 67528953 is about 407.2208493776.

The spelling of 67528953 in words is "sixty-seven million, five hundred twenty-eight thousand, nine hundred fifty-three".