73424731 has 2 divisors, whose sum is σ = 73424732. Its totient is φ = 73424730.

The previous prime is 73424713. The next prime is 73424783. The reversal of 73424731 is 13742437.

Together with previous prime (73424713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73424731 - 2⁵ = 73424699 is a prime.

It is a super-2 number, since 2×73424731² = 10782382244844722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73424693 and 73424702.

It is not a weakly prime, because it can be changed into another prime (73424711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36712365 + 36712366.

It is an arithmetic number, because the mean of its divisors is an integer number (36712366).

Almost surely, 2^73424731 is an apocalyptic number.

73424731 is a deficient number, since it is larger than the sum of its proper divisors (1).

73424731 is an equidigital number, since it uses as much as digits as its factorization.

73424731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 31.

The square root of 73424731 is about 8568.8231980827. The cubic root of 73424731 is about 418.7428983425.

The spelling of 73424731 in words is "seventy-three million, four hundred twenty-four thousand, seven hundred thirty-one".