403772461 has 2 divisors, whose sum is σ = 403772462. Its totient is φ = 403772460.

The previous prime is 403772419. The next prime is 403772471. The reversal of 403772461 is 164277304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236975236 + 166797225 = 15394^2 + 12915^2 .

It is a cyclic number.

It is not a de Polignac number, because 403772461 - 2⁷ = 403772333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403772471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201886230 + 201886231.

It is an arithmetic number, because the mean of its divisors is an integer number (201886231).

Almost surely, 2^403772461 is an apocalyptic number.

It is an amenable number.

403772461 is a deficient number, since it is larger than the sum of its proper divisors (1).

403772461 is an equidigital number, since it uses as much as digits as its factorization.

403772461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 403772461 is about 20094.0902008526. The cubic root of 403772461 is about 739.1153666748.

The spelling of 403772461 in words is "four hundred three million, seven hundred seventy-two thousand, four hundred sixty-one".