70163478 has 192 divisors, whose sum is σ = 207028224. Its totient is φ = 16632000.

The previous prime is 70163477. The next prime is 70163479. The reversal of 70163478 is 87436107.

It is an interprime number because it is at equal distance from previous prime (70163477) and next prime (70163479).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70163473) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 988183 + ... + 988253.

It is an arithmetic number, because the mean of its divisors is an integer number (1078272).

Almost surely, 2^70163478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70163478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103514112).

70163478 is an abundant number, since it is smaller than the sum of its proper divisors (136864746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70163478 is a wasteful number, since it uses less digits than its factorization.

70163478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 70163478 is about 8376.3642470943. The cubic root of 70163478 is about 412.4491088732.

The spelling of 70163478 in words is "seventy million, one hundred sixty-three thousand, four hundred seventy-eight".