67472761 has 2 divisors, whose sum is σ = 67472762. Its totient is φ = 67472760.

The previous prime is 67472759. The next prime is 67472831. The reversal of 67472761 is 16727476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64304361 + 3168400 = 8019^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 67472761 - 2¹ = 67472759 is a prime.

Together with 67472759, it forms a pair of twin primes.

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

It is not a weakly prime, because it can be changed into another prime (67472861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33736380 + 33736381.

It is an arithmetic number, because the mean of its divisors is an integer number (33736381).

Almost surely, 2^67472761 is an apocalyptic number.

It is an amenable number.

67472761 is a deficient number, since it is larger than the sum of its proper divisors (1).

67472761 is an equidigital number, since it uses as much as digits as its factorization.

67472761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 40.

The square root of 67472761 is about 8214.1804825558. The cubic root of 67472761 is about 407.1078662156.

The spelling of 67472761 in words is "sixty-seven million, four hundred seventy-two thousand, seven hundred sixty-one".