70010078 has 4 divisors (see below), whose sum is σ = 105015120. Its totient is φ = 35005038.

The previous prime is 70010077. The next prime is 70010099. The reversal of 70010078 is 87001007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87001007 = 641 ⋅135727.

It is a super-2 number, since 2×70010078² = 9802822043132168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70010077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17502518 + ... + 17502521.

It is an arithmetic number, because the mean of its divisors is an integer number (26253780).

Almost surely, 2^70010078 is an apocalyptic number.

70010078 is a deficient number, since it is larger than the sum of its proper divisors (35005042).

70010078 is a wasteful number, since it uses less digits than its factorization.

70010078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35005041.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 70010078 is about 8367.2025193609. The cubic root of 70010078 is about 412.1483072762.

The spelling of 70010078 in words is "seventy million, ten thousand, seventy-eight".