75722431 has 2 divisors, whose sum is σ = 75722432. Its totient is φ = 75722430.

The previous prime is 75722419. The next prime is 75722443. The reversal of 75722431 is 13422757.

It is a balanced prime because it is at equal distance from previous prime (75722419) and next prime (75722443).

It is a cyclic number.

It is not a de Polignac number, because 75722431 - 2⁵ = 75722399 is a prime.

It is a super-2 number, since 2×75722431² = 11467773113099522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75722393 and 75722402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75722401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37861215 + 37861216.

It is an arithmetic number, because the mean of its divisors is an integer number (37861216).

Almost surely, 2^75722431 is an apocalyptic number.

75722431 is a deficient number, since it is larger than the sum of its proper divisors (1).

75722431 is an equidigital number, since it uses as much as digits as its factorization.

75722431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 75722431 is about 8701.8636509658. The cubic root of 75722431 is about 423.0660568576.

The spelling of 75722431 in words is "seventy-five million, seven hundred twenty-two thousand, four hundred thirty-one".