70378469 has 4 divisors (see below), whose sum is σ = 80432544. Its totient is φ = 60324396.

The previous prime is 70378409. The next prime is 70378481. The reversal of 70378469 is 96487307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96487307 = 7 ⋅13783901.

It is a cyclic number.

It is not a de Polignac number, because 70378469 - 2²⁴ = 53601253 is a prime.

It is a super-2 number, since 2×70378469² = 9906257797567922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70378409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5027027 + ... + 5027040.

It is an arithmetic number, because the mean of its divisors is an integer number (20108136).

Almost surely, 2^70378469 is an apocalyptic number.

It is an amenable number.

70378469 is a deficient number, since it is larger than the sum of its proper divisors (10054075).

70378469 is a wasteful number, since it uses less digits than its factorization.

70378469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054074.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70378469 is about 8389.1876245558. The cubic root of 70378469 is about 412.8699471496.

The spelling of 70378469 in words is "seventy million, three hundred seventy-eight thousand, four hundred sixty-nine".