407634947 has 2 divisors, whose sum is σ = 407634948. Its totient is φ = 407634946.

The previous prime is 407634859. The next prime is 407634971. The reversal of 407634947 is 749436704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 407634947 - 2⁸ = 407634691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 407634898 and 407634907.

It is not a weakly prime, because it can be changed into another prime (407634547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203817473 + 203817474.

It is an arithmetic number, because the mean of its divisors is an integer number (203817474).

Almost surely, 2^407634947 is an apocalyptic number.

407634947 is a deficient number, since it is larger than the sum of its proper divisors (1).

407634947 is an equidigital number, since it uses as much as digits as its factorization.

407634947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 407634947 is about 20189.9714462403. The cubic root of 407634947 is about 741.4646830410.

The spelling of 407634947 in words is "four hundred seven million, six hundred thirty-four thousand, nine hundred forty-seven".