86957949 has 8 divisors (see below), whose sum is σ = 124862752. Its totient is φ = 53512560.

The previous prime is 86957947. The next prime is 86957951. The reversal of 86957949 is 94975968.

It is an interprime number because it is at equal distance from previous prime (86957947) and next prime (86957951).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86957949 - 2¹ = 86957947 is a prime.

It is a super-3 number, since 3×86957949³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86957947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114807 + ... + 1114884.

It is an arithmetic number, because the mean of its divisors is an integer number (15607844).

Almost surely, 2^86957949 is an apocalyptic number.

It is an amenable number.

86957949 is a deficient number, since it is larger than the sum of its proper divisors (37904803).

86957949 is a wasteful number, since it uses less digits than its factorization.

86957949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229707.

The product of its digits is 4898880, while the sum is 57.

The square root of 86957949 is about 9325.1246104275. The cubic root of 86957949 is about 443.0333598659.

The spelling of 86957949 in words is "eighty-six million, nine hundred fifty-seven thousand, nine hundred forty-nine".