86626949 has 2 divisors, whose sum is σ = 86626950. Its totient is φ = 86626948.

The previous prime is 86626921. The next prime is 86626979. The reversal of 86626949 is 94962668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67354849 + 19272100 = 8207^2 + 4390^2 .

It is a cyclic number.

It is not a de Polignac number, because 86626949 - 2⁸ = 86626693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86626897 and 86626906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86626919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43313474 + 43313475.

It is an arithmetic number, because the mean of its divisors is an integer number (43313475).

Almost surely, 2^86626949 is an apocalyptic number.

It is an amenable number.

86626949 is a deficient number, since it is larger than the sum of its proper divisors (1).

86626949 is an equidigital number, since it uses as much as digits as its factorization.

86626949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 86626949 is about 9307.3599371680. The cubic root of 86626949 is about 442.4705188526.

The spelling of 86626949 in words is "eighty-six million, six hundred twenty-six thousand, nine hundred forty-nine".