73706431 has 2 divisors, whose sum is σ = 73706432. Its totient is φ = 73706430.

The previous prime is 73706419. The next prime is 73706443. The reversal of 73706431 is 13460737.

It is a balanced prime because it is at equal distance from previous prime (73706419) and next prime (73706443).

It is a cyclic number.

It is not a de Polignac number, because 73706431 - 2¹³ = 73698239 is a prime.

It is a super-2 number, since 2×73706431² = 10865275941515522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73706393 and 73706402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73706461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36853215 + 36853216.

It is an arithmetic number, because the mean of its divisors is an integer number (36853216).

Almost surely, 2^73706431 is an apocalyptic number.

73706431 is a deficient number, since it is larger than the sum of its proper divisors (1).

73706431 is an equidigital number, since it uses as much as digits as its factorization.

73706431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 73706431 is about 8585.2449586485. The cubic root of 73706431 is about 419.2777287705.

The spelling of 73706431 in words is "seventy-three million, seven hundred six thousand, four hundred thirty-one".