90670947 has 16 divisors (see below), whose sum is σ = 122234880. Its totient is φ = 59781600.

The previous prime is 90670927. The next prime is 90670963. The reversal of 90670947 is 74907609.

It is not a de Polignac number, because 90670947 - 2²⁶ = 23562083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90670899 and 90670908.

It is not an unprimeable number, because it can be changed into a prime (90670927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130872 + ... + 131562.

It is an arithmetic number, because the mean of its divisors is an integer number (7639680).

Almost surely, 2^90670947 is an apocalyptic number.

90670947 is a deficient number, since it is larger than the sum of its proper divisors (31563933).

90670947 is a wasteful number, since it uses less digits than its factorization.

90670947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 90670947 is about 9522.1293311948. The cubic root of 90670947 is about 449.2513428171.

The spelling of 90670947 in words is "ninety million, six hundred seventy thousand, nine hundred forty-seven".