67072361 has 8 divisors (see below), whose sum is σ = 71137440. Its totient is φ = 63020608.

The previous prime is 67072339. The next prime is 67072363. The reversal of 67072361 is 16327076.

67072361 = 1388² + 1389² + ... + 1421².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67072361 - 2⁶ = 67072297 is a prime.

It is a super-2 number, since 2×67072361² = 8997403220228642, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67072363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8210 + ... + 14196.

It is an arithmetic number, because the mean of its divisors is an integer number (8892180).

Almost surely, 2^67072361 is an apocalyptic number.

It is an amenable number.

67072361 is a deficient number, since it is larger than the sum of its proper divisors (4065079).

67072361 is a wasteful number, since it uses less digits than its factorization.

67072361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 67072361 is about 8189.7717306406. The cubic root of 67072361 is about 406.3009751893.

The spelling of 67072361 in words is "sixty-seven million, seventy-two thousand, three hundred sixty-one".