87470149 has 8 divisors (see below), whose sum is σ = 96203520. Its totient is φ = 79023216.

The previous prime is 87470113. The next prime is 87470153. The reversal of 87470149 is 94107478.

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

It is a cyclic number.

It is not a de Polignac number, because 87470149 - 2⁹ = 87469637 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87470549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70969 + ... + 72190.

It is an arithmetic number, because the mean of its divisors is an integer number (12025440).

Almost surely, 2^87470149 is an apocalyptic number.

It is an amenable number.

87470149 is a deficient number, since it is larger than the sum of its proper divisors (8733371).

87470149 is a wasteful number, since it uses less digits than its factorization.

87470149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143219.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 87470149 is about 9352.5477277585. The cubic root of 87470149 is about 443.9015097532.

The spelling of 87470149 in words is "eighty-seven million, four hundred seventy thousand, one hundred forty-nine".