74231407 has 2 divisors, whose sum is σ = 74231408. Its totient is φ = 74231406.

The previous prime is 74231389. The next prime is 74231411. The reversal of 74231407 is 70413247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74231407 - 2¹¹ = 74229359 is a prime.

It is equal to p_4351933 and since 74231407 and 4351933 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74231447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37115703 + 37115704.

It is an arithmetic number, because the mean of its divisors is an integer number (37115704).

Almost surely, 2^74231407 is an apocalyptic number.

74231407 is a deficient number, since it is larger than the sum of its proper divisors (1).

74231407 is an equidigital number, since it uses as much as digits as its factorization.

74231407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 74231407 is about 8615.7650269724. The cubic root of 74231407 is about 420.2708136276.

The spelling of 74231407 in words is "seventy-four million, two hundred thirty-one thousand, four hundred seven".