76431401 has 2 divisors, whose sum is σ = 76431402. Its totient is φ = 76431400.

The previous prime is 76431379. The next prime is 76431403. The reversal of 76431401 is 10413467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62173225 + 14258176 = 7885^2 + 3776^2 .

It is a cyclic number.

It is not a de Polignac number, because 76431401 - 2¹⁸ = 76169257 is a prime.

Together with 76431403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76431403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38215700 + 38215701.

It is an arithmetic number, because the mean of its divisors is an integer number (38215701).

Almost surely, 2^76431401 is an apocalyptic number.

It is an amenable number.

76431401 is a deficient number, since it is larger than the sum of its proper divisors (1).

76431401 is an equidigital number, since it uses as much as digits as its factorization.

76431401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 76431401 is about 8742.5054189288. The cubic root of 76431401 is about 424.3823109989.

Adding to 76431401 its reverse (10413467), we get a palindrome (86844868).

The spelling of 76431401 in words is "seventy-six million, four hundred thirty-one thousand, four hundred one".