85901407 has 2 divisors, whose sum is σ = 85901408. Its totient is φ = 85901406.

The previous prime is 85901377. The next prime is 85901411. The reversal of 85901407 is 70410958.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85901407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85901107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42950703 + 42950704.

It is an arithmetic number, because the mean of its divisors is an integer number (42950704).

Almost surely, 2^85901407 is an apocalyptic number.

85901407 is a deficient number, since it is larger than the sum of its proper divisors (1).

85901407 is an equidigital number, since it uses as much as digits as its factorization.

85901407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 85901407 is about 9268.3011927753. The cubic root of 85901407 is about 441.2317534526.

The spelling of 85901407 in words is "eighty-five million, nine hundred one thousand, four hundred seven".