761421481 has 2 divisors, whose sum is σ = 761421482. Its totient is φ = 761421480.

The previous prime is 761421469. The next prime is 761421487. The reversal of 761421481 is 184124167.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547794025 + 213627456 = 23405^2 + 14616^2 .

It is a cyclic number.

It is not a de Polignac number, because 761421481 - 2¹⁵ = 761388713 is a prime.

It is a super-2 number, since 2×761421481² = 1159525343456466722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (761421487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380710740 + 380710741.

It is an arithmetic number, because the mean of its divisors is an integer number (380710741).

Almost surely, 2^761421481 is an apocalyptic number.

It is an amenable number.

761421481 is a deficient number, since it is larger than the sum of its proper divisors (1).

761421481 is an equidigital number, since it uses as much as digits as its factorization.

761421481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 34.

The square root of 761421481 is about 27593.8667279524. The cubic root of 761421481 is about 913.1491270606.

The spelling of 761421481 in words is "seven hundred sixty-one million, four hundred twenty-one thousand, four hundred eighty-one".