76438541 has 2 divisors, whose sum is σ = 76438542. Its totient is φ = 76438540.

The previous prime is 76438459. The next prime is 76438543. The reversal of 76438541 is 14583467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49294441 + 27144100 = 7021^2 + 5210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76438541 is a prime.

Together with 76438543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76438495 and 76438504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76438543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38219270 + 38219271.

It is an arithmetic number, because the mean of its divisors is an integer number (38219271).

Almost surely, 2^76438541 is an apocalyptic number.

It is an amenable number.

76438541 is a deficient number, since it is larger than the sum of its proper divisors (1).

76438541 is an equidigital number, since it uses as much as digits as its factorization.

76438541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 76438541 is about 8742.9137591538. The cubic root of 76438541 is about 424.3955254427.

The spelling of 76438541 in words is "seventy-six million, four hundred thirty-eight thousand, five hundred forty-one".