67610081 has 12 divisors (see below), whose sum is σ = 84932736. Its totient is φ = 52682520.

The previous prime is 67609979. The next prime is 67610083. The reversal of 67610081 is 18001676.

It is not a de Polignac number, because 67610081 - 2¹⁰ = 67609057 is a prime.

It is a super-2 number, since 2×67610081² = 9142246105653122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67610083) 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, 39065 + ... + 40758.

It is an arithmetic number, because the mean of its divisors is an integer number (7077728).

Almost surely, 2^67610081 is an apocalyptic number.

It is an amenable number.

67610081 is a deficient number, since it is larger than the sum of its proper divisors (17322655).

67610081 is a wasteful number, since it uses less digits than its factorization.

67610081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79852 (or 79841 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 67610081 is about 8222.5349497585. The cubic root of 67610081 is about 407.3838599106.

The spelling of 67610081 in words is "sixty-seven million, six hundred ten thousand, eighty-one".