407658949 has 2 divisors, whose sum is σ = 407658950. Its totient is φ = 407658948.

The previous prime is 407658869. The next prime is 407658989. The reversal of 407658949 is 949856704.

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., 238918849 + 168740100 = 15457^2 + 12990^2 .

It is a cyclic number.

It is not a de Polignac number, because 407658949 - 2¹⁵ = 407626181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 407658896 and 407658905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407658989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203829474 + 203829475.

It is an arithmetic number, because the mean of its divisors is an integer number (203829475).

Almost surely, 2^407658949 is an apocalyptic number.

It is an amenable number.

407658949 is a deficient number, since it is larger than the sum of its proper divisors (1).

407658949 is an equidigital number, since it uses as much as digits as its factorization.

407658949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 407658949 is about 20190.5658415013. The cubic root of 407658949 is about 741.4792355110.

The spelling of 407658949 in words is "four hundred seven million, six hundred fifty-eight thousand, nine hundred forty-nine".