84961490 has 16 divisors (see below), whose sum is σ = 153330840. Its totient is φ = 33895680.

The previous prime is 84961489. The next prime is 84961493. The reversal of 84961490 is 9416948.

It can be written as a sum of positive squares in 4 ways, for example, as 25532809 + 59428681 = 5053^2 + 7709^2 .

It is not an unprimeable number, because it can be changed into a prime (84961493) 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, 7031 + ... + 14810.

Almost surely, 2^84961490 is an apocalyptic number.

84961490 is a deficient number, since it is larger than the sum of its proper divisors (68369350).

84961490 is a wasteful number, since it uses less digits than its factorization.

84961490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22237.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 84961490 is about 9217.4557227035. The cubic root of 84961490 is about 439.6165564362.

The spelling of 84961490 in words is "eighty-four million, nine hundred sixty-one thousand, four hundred ninety".