86629349 has 4 divisors (see below), whose sum is σ = 86647980. Its totient is φ = 86610720.

The previous prime is 86629327. The next prime is 86629363. The reversal of 86629349 is 94392668.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 52780225 + 33849124 = 7265^2 + 5818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86629349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86629369) 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, 4097 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (21661995).

Almost surely, 2^86629349 is an apocalyptic number.

It is an amenable number.

86629349 is a deficient number, since it is larger than the sum of its proper divisors (18631).

86629349 is an equidigital number, since it uses as much as digits as its factorization.

86629349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18630.

The product of its digits is 559872, while the sum is 47.

The square root of 86629349 is about 9307.4888664988. The cubic root of 86629349 is about 442.4746050307.

The spelling of 86629349 in words is "eighty-six million, six hundred twenty-nine thousand, three hundred forty-nine".