86734457 has 4 divisors (see below), whose sum is σ = 87593316. Its totient is φ = 85875600.

The previous prime is 86734451. The next prime is 86734463. The reversal of 86734457 is 75443768.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (86734451) and next prime (86734463).

It can be written as a sum of positive squares in 2 ways, for example, as 56911936 + 29822521 = 7544^2 + 5461^2 .

It is a cyclic number.

It is not a de Polignac number, because 86734457 - 2¹⁰ = 86733433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86734451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429278 + ... + 429479.

It is an arithmetic number, because the mean of its divisors is an integer number (21898329).

Almost surely, 2^86734457 is an apocalyptic number.

It is an amenable number.

86734457 is a deficient number, since it is larger than the sum of its proper divisors (858859).

86734457 is a wasteful number, since it uses less digits than its factorization.

86734457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858858.

The product of its digits is 564480, while the sum is 44.

The square root of 86734457 is about 9313.1335757628. The cubic root of 86734457 is about 442.6534852242.

The spelling of 86734457 in words is "eighty-six million, seven hundred thirty-four thousand, four hundred fifty-seven".