86744943 has 6 divisors (see below), whose sum is σ = 125298264. Its totient is φ = 57829956.

The previous prime is 86744921. The next prime is 86745059. The reversal of 86744943 is 34944768.

It is not a de Polignac number, because 86744943 - 2¹³ = 86736751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86746943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4819155 + ... + 4819172.

It is an arithmetic number, because the mean of its divisors is an integer number (20883044).

Almost surely, 2^86744943 is an apocalyptic number.

86744943 is a deficient number, since it is larger than the sum of its proper divisors (38553321).

86744943 is a wasteful number, since it uses less digits than its factorization.

86744943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638333 (or 9638330 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 86744943 is about 9313.6965271583. The cubic root of 86744943 is about 442.6713231076.

The spelling of 86744943 in words is "eighty-six million, seven hundred forty-four thousand, nine hundred forty-three".