40473247 has 2 divisors, whose sum is σ = 40473248. Its totient is φ = 40473246.

The previous prime is 40473193. The next prime is 40473253. The reversal of 40473247 is 74237404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40473247 - 2⁷ = 40473119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40473947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20236623 + 20236624.

It is an arithmetic number, because the mean of its divisors is an integer number (20236624).

Almost surely, 2^40473247 is an apocalyptic number.

40473247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40473247 is an equidigital number, since it uses as much as digits as its factorization.

40473247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 40473247 is about 6361.8587692592. The cubic root of 40473247 is about 343.3386399615.

The spelling of 40473247 in words is "forty million, four hundred seventy-three thousand, two hundred forty-seven".