405375007 has 2 divisors, whose sum is σ = 405375008. Its totient is φ = 405375006.

The previous prime is 405374993. The next prime is 405375029. The reversal of 405375007 is 700573504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405375007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 405375007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405375107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202687503 + 202687504.

It is an arithmetic number, because the mean of its divisors is an integer number (202687504).

Almost surely, 2^405375007 is an apocalyptic number.

405375007 is a deficient number, since it is larger than the sum of its proper divisors (1).

405375007 is an equidigital number, since it uses as much as digits as its factorization.

405375007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 405375007 is about 20133.9267655368. The cubic root of 405375007 is about 740.0919090859.

The spelling of 405375007 in words is "four hundred five million, three hundred seventy-five thousand, seven".